Watch full movie online. Psycho Killer is a neo-noir thriller featuring Otto and Lex, a pair of star-crossed lovers, who do the right thing but make the wrong decision and it costs them everything. When Otto's derailed on his way to becoming the city’s youngest detective, he stays in the police business as a bioremediation specialist cleaning up after a serial killer. With an uncanny knowledge of horror films and his natural born instincts, Otto and Lex crack the code to where the killer is going to strike next…now they just gotta catch him.