A small, seemingly innocuous plastic reel of film leads surveillance specialist Tom Welles down an increasingly dark and frightening path. With the help of the streetwise Max, Welles relentlessly follows a bizarre trail of evidence to determine the fate of a complete stranger. As his work turns into obsession, he drifts farther and farther away from his wife, family and simple life as a small-town private eye.

In the US, a child goes missing every 40 seconds. You never think it will happen to you. Until it does. Alone and scared, Karla Dyson (Halle Berry) is unwilling to leave the fate of her son's life in someone else's hands. When she catches a glimpse of the abductors speeding away, she decides to fight back. In a heart pounding race against time, Karla begins a high speed pursuit and will stop at nothing to save her son's life.

Dani (Florence Pugh) and Christian (Jack Reynor) are a young American couple with a relationship on the brink of falling apart. But after a family tragedy keeps them together, a grieving Dani invites herself to join Christian and his friends on a trip to a once-in-a-lifetime midsummer festival in a remote Swedish village. What begins as a carefree summer holiday in a land of eternal sunlight takes a sinister turn when the insular villagers invite their guests to partake in festivities that render the pastoral paradise increasingly unnerving and viscerally disturbing.

A devout community suffering from a plague is torn apart by a beautiful young woman and the forces of witchcraft, black magic, and possession.