Barney tries to track down a mystery woman who is warning other women not to sleep with him. He narrows the list down to 64 candidates.

A severed hand is found on the California-Nevada state line. Patrick takes advantage of the opportunity to gamble at a casino.

When the star witness in a high-profile narcotics case and his girlfriend are murdered, the local detectives are certain it is to prevent the witness' testimony. However, Jane suspects that the killer is actually connected to the girlfriend.

Jane searches for a way for Maura to find her biological mother, Dr Hope Davis. Angela gets swept up in a political campaign.

A boot camp trainee and his drill sergeant exhibit the same peculiar symptoms; an indecent photo of Chase is posted online; House helps prepare Rachel for enrolment at a prestigious preschool.