In this chilling thriller, a murderer is on the loose in a mellow Los Angeles neighborhood, and he's picking off victims from the rooftops of the bucolic homes with his weapon of choice: a crossbow. When three women (Melanie Lynskey, Mary Lynn Rajskub and Sheeri Rappaport) realize that their house has now become the madman's chosen perch, they must band together to end his reign of terror before they're tallied up as part of the body count.