Doyle receives a new vision that sends the group to the club scene. They soon learn they are looking for a serial killer who seeks his prey from D'Oblique, a chi-chi singles bar. While perusing the crowd, Angel meets Kate, an LA police detective and D'Oblique regular. Though they initially bond, Angel is preoccupied by his mission and devotes his efforts to pursuing the killer. After a violent confrontation, Angel discovers the suspect is a demon parasite. Doyle and Cordelia bond as they learn more about the identity and behaviors of the demon and Kate and Angel soon work together to catch the killer.