After escaping prison Kat finds his own revolver pointed to his head by an unknown assailant. As the empty rounds click away, Kat tries to remember what happened to each bullet.
Claire is a lonely hairstylist who secretly murders and scalps her clients. When Olivia makes the well-intentioned mistake of asking Claire to style her hair for her wedding, she becomes dangerously obsessed, and her sanity starts to slip away with bloody consequences.