Dick discovers the emotion of jealousy when Dr. Albright's old boyfriend returns to visit on a promotional tour of the novel he dedicated to her; Harry adopts a stray dog.

Dan weighs the merits of giving up his boring garage job for a new construction endeavor with his pals; Jackie surfs the Internet and becomes addicted.

Frasier's old love, Diane Chambers, comes to Seattle for the grand opening of her play about the "losers" at Cheers and their hopeless obsession with "Mary Anne". Frasier gets roped into financing the whole thing and narrowly avoids another fling with Diane.