YMMV / Psych S 05 E 016 Yang 3 in 2D

• Complete Monster (includes "Mr. Yin Presents..."): Mr. Yin, also known as Karl Rotmensen, is a suave, depraved sociopath and one of Shawn Spencer's most personal enemies. After grooming his partner and daughter Yang into becoming a killer like him, the pair would force the police to play twisted games with an innocent person's life on the line. When Yin first appears, he makes his presence known by murdering a waitress and posing her corpse like a yin-yang symbol. He then goes on to stab police consultant Mary Lightly to death before kidnapping Shawn's friend Juliet and his girlfriend Abigail, and forcing him to choose between preventing the former from falling to her death or saving the latter from drowning. When he reappears, Yin lures Shawn and his best friend Gus to his home, where he forces Shawn to watch as he tries to poison Gus while promising him a "special" death afterwards. A heartless madman who kills for the thrill of it, Yin's appearances severely darken the tone of what's an otherwise lighthearted buddy comedy show.