Signs of a Psychopath (2020)

S6E5 He Thought We Were Buddies

A man makes a desperate 911 call, gasping for help, only for first responders to arrive and discover him brutally slain, with 59 stab wounds marking his body. As detectives delve into the investigation, they turn their attention to his closest friend, unearthing a twisted tale of betrayal and envy that culminates in an eruption of psychotic fury.