Plot summary
After a woman is killed, the CBI discovers her marriage was having problems and that the husband is having an affair with a dominatrix. They went to a radio show to fix their marriage, and then to private sessions with the show's host/counselor. Van Pelt and Rigsby go undercover as a couple with relationship problems on the radio show. During the show, their true feelings for each other start to come out. After the killer is apprehended, Van Pelt goes to Rigsby's house and they kiss.
Credits
Adapted from Wikipedia contributors, The Mentalist season 5. HTML formatting and reference markers removed.