Alex, Emily, and their son, RJ, are new to Los Angeles. A chance meeting at the park introduces them to the mysterious Kurt, Charlotte, and Max. A family "playdate" becomes increasingly interesting as the night goes on.
The graduating class at Osborne High is being targeted by a masked assailant, intent on exposing the darkest secret of each victim, and only a group of misfit outsiders can stop the killings.
A video artist looking for work drives to a remote house in the forest to meet a man claiming to be a serial killer. But after agreeing to spend the day with him, she soon realizes that she made a deadly mistake.