King of the Turf is a 1939 American drama film starring Adolphe Menjou.

[1] Jim Mason was once a distinguished figure in the sport of horse racing, but his reputation was ruined by a crooked race that caused the death of a horse and a jockey.

Goldie rides the horse successfully in races, with Mason training him.

At her behest, Mason spares him from a risky future in horse racing by pretending to revert to his previous corrupt and drunken ways.

Goldie refuses, however, to deliberately lose the big race as the crooked gamblers demand.