Niall Kennedy and Ruben grew up as brothers despite not being related by blood—one strong and fiercely loyal, the other quiet and gentle. Thirty years later, they reunite at Niall’s wedding, but Ruben seems uneasy and on edge; when a sudden act of violence erupts, it sends the story back through their shared past, revealing how their bond was shaped and how even the closest relationships can ultimately fall apart.

HALF MAN is a British six-part television drama created by Richard Gadd. It is a co-production by Thistledown Pictures and Mam Tor Productions for the BBC and HBO. It had its world premiere as the opening series of the 2026 Canneseries. The series premiered on 23 April 2026 on HBO in the US and on BBC iPlayer on 24 April 2026 in the UK.