Zooey Deschanel guest stars as Roz's wild, impulsive, and highly opinionated cousin Jen. The girl's aggressive personality drives Frasier (Kelsey Grammer) up a wall and leaves Roz (Peri Gilpin) exhausted trying to keep up with her cousin's round-the-clock partying. About the only person who truly hits it off with Jen is KACL station manager Kenny Daly (Tom McGowan), who feels he needs her sort of excitement in his life -- maybe permanently. Elsewhere, Martin (John Mahoney) tries to snooker Daphne (Jane Leeves) into continuing to tend his needs.
by Rovi synopsis