Hassel(2017)

Hassel is a Swedish crime series following detective Roland Hassel as he launches a personal vendetta after his mentor and father figure, Yngve Ruda, is murdered on a Stockholm street. Determined to find the killer, Hassel assembles Triton, a covert task force of trusted colleagues, and pursues the investigation with dangerous obsession. The case spirals beyond street-level crime into the corridors of power in Stockholm and Brussels, exposing deep corruption. As Hassel's fixation intensifies, his relationship with his girlfriend Daniela and stepdaughter Vida fractures, pulling his family into the darkness of his quest. Hassel's relentless pursuit of justice—and revenge—comes at a mounting personal cost, blurring the line between duty and destruction.