After shredding a Prada for a costume, Shirley Manchester fears she opened a portal to hell. With a fashion designer out for revenge hot on her heels, a secret admirer on a mission to evict her from the pool of eligible bachelorettes, and a relentless streak of bad luck, surviving through Halloween is turning into a sketchy proposition.

Next time, Shirley will remember there are better ways to dodge an unwanted advance than kissing a random stranger.

Escaping the party turns out to be only the beginning of Shirley’s woes. Curses aren’t supposed to be real, but after the going keeps getting tougher, she’s at real risk of becoming a believer in the things that go bump in the night.