In Finnish forest, Saga and her husband Jon embark on a new chapter as parents. But Saga's joy is overshadowed by a chilling suspicion about their newborn, unbeknownst to Jon, causing a rift as she alone grapples with the disturbing truth.

Two cultists do door-to-door missionary work and in one house accidentally kill a person. That same night, a group of live action role-players enter the house. The cultists must hide the body, play along and survive the night.