'Stranger Things' Season 4 Part 1 Ending Explained: Who Is Vecna?

First it was the Demogorgon, then it was the Mind Flayer, but now Eleven and the residents of Hawkins have a much more menacing monster to face.

[{"selector":"#anim-bc5bf0ab-dfa9-4272-b00d-bed4b8b34c27","keyframes":[{"transform":"scale(1)","offset":0},{"transform":"scale(1.5)","offset":0.33},{"transform":"scale(0.95)","offset":0.66},{"transform":"scale(1)","offset":1}],"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}] [{"selector":"#anim-d2847a9e-aaf5-4166-83da-413d61de5aa9","keyframes":[{"transform":"scale(1)","offset":0},{"transform":"scale(1.5)","offset":0.33},{"transform":"scale(0.95)","offset":0.66},{"transform":"scale(1)","offset":1}],"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}]

[{"selector":"#anim-dd099661-120b-4eaf-a02f-e7424f5475ac","keyframes":[{"offset":0,"transform":"translate3d(0, -149.1453%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.29,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.45,"transform":"translate3d(0, -41.939658359999996%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.61,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.71,"transform":"translate3d(0, -14.25829068%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.8,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.85,"transform":"translate3d(0, -5.35431627%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.92,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.96,"transform":"translate3d(0, -2.3266666799999998%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":1,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"}],"delay":0,"duration":1600,"fill":"both"}] [{"selector":"#anim-365a65c5-48b8-4ba1-b851-f3bdae233e15","keyframes":[{"offset":0,"transform":"translate3d(0, -330.2624%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.29,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.45,"transform":"translate3d(0, -92.86978688%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.61,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.71,"transform":"translate3d(0, -31.573085440000003%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.8,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.85,"transform":"translate3d(0, -11.85642016%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.92,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.96,"transform":"translate3d(0, -5.15209344%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":1,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"}],"delay":0,"duration":1600,"fill":"both"}] Vecna, as the creature is dubbed by Dustin Henderson is an all-new villain for Stranger Things Season 4 and it just might be the worst one they've faced yet.

[{"selector":"#anim-5522fc44-6316-4508-9e06-2a989617e311","keyframes":{"transform":["translate3d(95.15011%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-7050e5f2-bfd8-4729-bc59-fb206d9442f1","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-c205d687-efc3-4d53-b6c6-7f1cc2f6921a","keyframes":{"transform":["translate3d(118.79194%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-fbf196f0-9208-47d1-9ae7-3ff7d2b968b3","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] From the monster's origins to its motivations, here is all you need to know about the new Big Bad in the Stranger Things universe, and how it relates to the first half of Season 4.

[{"selector":"#anim-903de7ae-270b-40e1-9f56-4c9d8a8a69c0","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-028bdda0-110f-45ae-92ee-58c3a023a558","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-85d806b1-9cd0-458a-be1a-709bb8c4cbec","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-38260b49-c36a-4dbc-8baf-0e4fe8159b37","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] The question that looms over the first half of Stranger Things' fourth season is who exactly Vecna is, and why the monster is terrorizing the town of Hawkins.

[{"selector":"#anim-bc90e235-ecb2-41ea-a3dc-d7dcca765c63","keyframes":[{"offset":0,"transform":"translate3d(0, -152.72384%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.29,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.45,"transform":"translate3d(0, -42.945943808%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.61,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.71,"transform":"translate3d(0, -14.600399104000001%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.8,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.85,"transform":"translate3d(0, -5.4827858560000005%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.92,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.96,"transform":"translate3d(0, -2.3824919039999997%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":1,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"}],"delay":0,"duration":1600,"fill":"both"}] [{"selector":"#anim-72428335-b1bb-49c7-94f9-cf3d63e133d6","keyframes":[{"offset":0,"transform":"translate3d(0, -290.80629%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.29,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.45,"transform":"translate3d(0, -81.774728748%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.61,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.71,"transform":"translate3d(0, -27.801081324000002%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.8,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.85,"transform":"translate3d(0, -10.439945811%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.92,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.96,"transform":"translate3d(0, -4.536578124%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":1,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"}],"delay":0,"duration":1600,"fill":"both"}] As the series progresses, Vecna begins his reign of terror, targeting individuals who have a deep, dark secret they don't want to reveal to anyone else.

Vecna then takes his victims to his own temporary hell where he is tormented by his inner demons as he hunts them down.

[{"selector":"#anim-0b245b7f-729f-4e79-a88f-b2711af1d3f7","keyframes":{"transform":["translate3d(-100%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-56eba6be-655d-47b7-ad2b-1b66912ebda3","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-0d4f5cba-3904-4004-9d9b-b940d67916b8","keyframes":{"transform":["translate3d(-134.14634%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-89602368-56f2-42a4-9cb4-307e5f60d355","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]