Lisa persuades her sister Rebecca to have her first one night stand; an overworked Perry irritates his unemployed roommate Shawn.

Rebecca wonders why Lisa would break up with Neil, when he seemed to be perfect. Meanwhile, Perry kicks Shawn out of the apartment after he fails to pick him up from an operation.

Leading up to her high school reunion, Rebecca is ready to confront Jesse, who stood her up at the senior prom; avid hockey fan Perry finds out his cable company will not be carrying the sport's championship games.

When it's time for Rebecca and Perry to go back to their high school reunion, Rebecca is ready to confront Jesse, the guy who publicly humiliated her by standing her up at the senior prom. But Perry knows the real reason why she was stood up and tells a preposterous lie to keep Rebecca from discovering the truth.