Katie Cassidy, Jane Kaczmarek, Elizabeth Henstridge, Chris Mulkey
Four friends gather at an elegant home during the Summer of Love, 1969. Unbeknownst to them, deadly visitors are waiting outside. What begins as a simple farewell party turns to a night of primal terror. The intruders stalk and torment the four, who struggle for their lives against what appears to be an attack by a Manson Family type group.—Warner Bros.