"Togetherness" is the theme of the evening, as Frasier (Kelsey Grammer) and Roz (Peri Gilpin) attend an out-of-town conference, while Niles (David Hyde Pierce) joins his former-cop father Martin (John Mahoney) on a private-eye surveillance session arranged by Donny (Saul Rubinek). Not unexpectedly, nervous Niles drives his dad crazy throughout the stakeout. As for Frasier and Roz, "craziness" of another kind ensues when they are forced to share a room -- and a few other things. ~ Hal Erickson, Rovi