One night, teenagers Stephen, Romi, Johnny, Mira, Tyler and Sasha are attending a Halloween holiday at a Halloween party. They encounter a teenage clown named Madeline, who thinks she's just a guest. That is until Stephen learns the truth about Madeline, is a clown seriel killer and former classmate who committed suicide a year earlier. As Stephen tries to uncover Madeline's identity, his friends must confront their darkest secrets and murdered.
