Synopsis by Brian J. Dillard
The latest vision from The Powers That Be sends the gang to D'Oblique, a hipster meat market, to hunt down a serial killer who preys on the denizens of the Los Angeles singles scene. Proving that they still have a thing or two to learn about keeping a low profile, Cordelia (Charisma Carpenter) and Doyle (Glenn Quinn) make a spectacle of themselves. She tries passing out Angel Investigations business cards to the bar's confused clientele, while he gets involved in a brawl. Meanwhile, Angel (David Boreanaz) gets chummy with Kate Lockley (Elisabeth Rohm), a grave and alluring young woman who confesses that she spends every night at the club. Over the next few nights, Angel continues to trace the killer, who turns out to be a demon parasite that must switch bodies frequently to survive. Just as he catches up with the monster, Angel crosses paths with Kate again. It turns out she's a police detective, and she suspects Angel himself of the murders. Originally broadcast October 12, 1999, on the WB network, "Lonely Hearts" marked season one, episode two of the supernatural comedy drama. Tracey Stone, who has a small guest role, previously appeared with Charisma Carpenter on an episode of the short-lived Malibu Shores in 1996.