In darkest rural Ireland, ex-boxer Douglas 'Arm' Armstrong has become the feared enforcer for the drug-dealing Devers family, whilst also trying to be a good father to his autistic five-year-old son, Jack. Torn between these two families, Arm's loyalties are truly tested when he is asked to kill for the first time.

• DMC Film
• Film4 Productions
• Cosmo Jarvis
• Barry Keoghan
• Niamh Algar
• Ned Dennehy
• David Wilmot
• Simone Kirby
• Anthony Welsh
• Roisin O'Neill