Listen 1996 Sarah, a San Francisco accountant, moves into a new apartment building to be near her new boyfriend Jake, a writer with a case of writers block When Jake has trouble with intimacy with Sarah, she escapes by eavesdropping on others peoples phone lines and soon suspects that a mans voice on a phone sex line is a serial killer that is killing prostitutes all over the city on a nightly basis Sarah then enlists the help of her girlfriendex lover, Krista, to find the killers identity before the killer finds them