The Conman (1998) on Netflix

Plot summary

King makes his living at the card table, and an evening at his mistress's place costs him his marriage: his pregnant wife Fanny walks out when she finds them together. Taping a gambling opponent named Chimney backfires when Chimney spots the camera, and the brawl that follows leaves Chimney dead and King colorblind. He serves five years for manslaughter and learns horse racing skills behind bars. On his release, a small-time gambler named Dragon, who has long idolized him, is waiting to collect him, and the two go into business together at the track. King also meets Dragon's sister Ching. All the while he is trying to trace Fanny and the son he has never seen.