The synopsis: A family of four heads to Santa Cruz for a Summer vacation, where they're soon terrorized by people who look exactly like them. Over the course of one night they do battle with their "Tethered" clones and desperately fight to survive.
The twist: Long before she's a paranoid suburban mom, Adelaide (Lupita Nyong'o) was just your average preteen getting taken to the Santa Cruz boardwalk for her birthday by her parents. But during that trip, the real Adelaide wanders off by herself into a hall of mirrors and is captured by her own doppelgänger, another little girl named Red, who looks exactly like her from her face to her choice of clothing. Red proceeds to drag Adelaide down to the tunnels and trap her there with the rest of the Tethered. The doppelgänger essentially then steals the real Adelaide's life, going back to her parents and living above ground. At the end of the film we discover this massive twist when Adelaide and Red fight to the death in the underground tunnels beneath the boardwalk. Their fatal interaction reveals that the seemingly "normal" woman we've been watching all along was actually born a member of the mysterious, "evil" Tethered race.
The amount of damage it'll do to your psyche: 🔪🔪🔪🔪
