Gunman (1983)

Captain Thanu Ajhan is haunted by a shameful memory from a war in Laos: back in 1971, he abandoned Sergeant Sommai Muangsap when he was surrounded by enemy soldiers. Years later Thanu's career has progressed: he is now the most reputed crime detective in Thailand, earning himself the nickname 'The Black Hands'. Meanwhile, Sergeant Sommai, who miraculously survived the seemingly impossible situation in the battlefield, is also at the peak of his career. He's the most reliable hitman around, although he passes under the guise of a barber. The fickle hand of destiny bring the two former colleagues face to face again, this time as adversaries. The confrontation, however, could be the final chance for Thanu to correct his past disloyalty