The episode follows the investigation into the murder of Shawn Caldwell, who initially appears to be an intelligence operative .
The murder case is overshadowed by the growing tension between Castle and Beckett. Beckett's relationship with Detective Tom Demming creates significant jealousy and friction. [S2E24] A Deadly Game
Nathan Fillion (Richard Castle), Stana Katic (Kate Beckett), Michael Trucco (Tom Demming). Plot Summary The episode follows the investigation into the murder