After advising his listeners to step out of their comfort zones, Frasier finds himself singing an Italian aria and trying to stop Niles from making a mistake.
Frasier tries to apologize after his stress-fueled assault on a Café Nervosa patron hits the papers, but he finds that the man is only interested in suing.
When Peg's unsophisticated relatives stop in for a visit, her bickering uncles and singing aunts interrupt Al's plan to relax and enjoy a John Wayne movie.
Herman sneaks out at night to learn how to become a detective, but Lily suspects that he is having an affair; she hires a detective agency to follow Herman.
Lily is upset with Herman when he returns from an office party late in the night, and refuses to cook for him, speak to him or let him into their bedroom.