In a small town in Massachusetts, four high school girls perform a ritual in an attempt to debunk the lore of Slender Man. When one of the girls goes mysteriously missing, they begin to suspect that she is, in fact, his latest victim.
In an isolated family mansion, a group of rich 20-somethings decides to play Bodies Bodies Bodies, a game where one of them is secretly a "killer" while the rest tries to "escape". Things take a turn for the worse when real bodies start turning up, setting off a paranoid and dangerous chain of events.
In an effort to repair their relationship, a couple books a vacation in the countryside for themselves and their daughter. What starts as a perfect retreat begins to fall apart as one loses their grip on reality, and a sinister force tries to tear them apart.
