Truth Will Out, The (TV Series)

Aroview: Swedish crime series about a detective who gathers together a mismatched team of cold-case investigators to crack a case involving eight killers who have gone free, after the unexpected discovery that Sweden's most notorious serial killer was actually a fraud. With only the dregs of the force available to work the case, and the detective also struggling with his mental health, they work to uncover the truth behind a cryptic message.

There's some wonderfully dark humour courtesy of lead actor Robert Gustafsson (a popular Swedish comedian) in this frosty whodunit based loosely on actual events.