While visiting Frasier’s radio station, Martin hears Roz talk about being scammed by a local con artist. Certain that he can tell criminals apart, Frasier is challenged by his father, the seasoned ex-cop, to put his skills to the test. Martin invites Frasier to an upcoming poker night with his three friends -- one of whom is an ex-con that Frasier must identify.

After closely scrutinizing the poker party, Frasier chooses the wrong person and loses the bet. Daphne is fooled as well when she discovers that she’s accepted a date with the real ex-con. She decides to go anyway, but doesn’t know she’s being shadowed by Frasier and an anxious Niles.

They track Daphne to a rundown bar, where she’s safe and rid of the bothersome date who had made a pass at her. Relieved, Frasier and Niles get up to leave, but are accosted by some local toughs. To free her companions, Daphne makes a bet that if she sinks five balls with one shot the guys are to be left alone. When she only sinks four, the three of them resort to the only thing left -- they run for their lives.