Set in San Francisco, this drama cautions those who would eavesdrop on other people's sexy telephone calls to think twice. Sarah is a bisexual ad executive who has left a relationship with her close pal Krista for one with handsome but troubled writer Jake. Though she craves a committed heterosexual relationship with him, she is not sure she is capable of settling down. To help her cope, she listens in, via a cheap cordless telephone, to the phone-sex calls of a nearby masher. From there she spies on an actual night of lovemaking between a woman and the caller. When the same woman turns up dead, and the police suspect a serial killer, Sarah begins to fear for her life, especially when it seems that Jake just may be the killer.