Fallen Angels - S1.E4

A serial killer is targeting the members of a band called The Guardian Angels. The second of his victims is Rebecca, wife of the band's lead singer Jakob Aasen. Jakob has hired private investigator Varg Veum to spy on Rebecca, whom he suspects of infidelity. Against his better judgement Varg takes on the job, and in an ironic twist he and Rebecca rekindle their former love and sleep together. In a race against time, a doubly compromised Varg strives to halt the killer before he strikes again - and in the process uncovers the dark secret behind the killings.