Psych ’s season finale delivered a conclusion to the Yin/Yang trilogy that I didn’t see coming, featuring such guest stars as Cybill Shepard, Mena Suvari, Ally Sheedy and Peter Weller.

Psych star James Roday has confirmed that viewers will soon find out the true identity of Yin. The actor told Zap2it that the serial killer will be exposed in tonight's fifth season finale.

Psych creator Steve Franks has revealed details of the Yang storyline this season. In the last finale, it emerged that Yang (Ally Sheedy) has a connection to Shawn (James Roday) as a photograph ...

Next week marks the Psych episode for which many loyal fans have been clamoring. On the fifth season finale, we’ll watch the conclusion of the Yin/Yang trilogy, as Shawn and Gus race to save a ...