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...