Ep 15. Scarlett Fever

Patrick Jane and the CBI team investigate the death of a young woman named Scarlet who was found murdered in her apartment. Scarlet was a successful fashion model with many admirers and a history of drug use. As the investigation progresses, Jane starts to suspect that the killer may be someone close to the victim or someone with a personal vendetta against her.

In the course of the investigation, Jane discovers that Scarlet had recently formed a romantic relationship with her photographer, a man named Lucas. Lucas is a smooth-talking ladies' man who seems to have a motive for killing Scarlet, but Jane is not convinced. He believes that Lucas is hiding something, but he can't prove it.

Meanwhile, Rigsby is dealing with his own personal issues. He has developed feelings for a woman named Sarah, but he is hesitant to pursue a relationship with her because she is the sister of a notorious gang leader. Rigsby's reluctance causes friction with Sarah, who feels that he is judging her based on her family's reputation.

As the investigation into Scarlet's murder continues, Jane uncovers a web of betrayal and deceit. He eventually solves the case, but not before risking his own life and revealing a shocking secret about one of the suspects.

Overall, "Scarlett Fever" is an intense and compelling episode of The Mentalist that highlights the show's strengths. The mystery at the center of the episode is complex and well-written, and the character development for Rigsby and Jane is excellent. Fans of the show will not be disappointed.