The Broken Horseshoe (film)

The Broken Horseshoe is a 1953 British crime film directed by Martyn C. Webster and starring Robert Beatty, Elizabeth Sellars, Peter Coke and Hugh Kelly. A surgeon is drawn into a murder case when he offers shelter to a woman who has witnessed a killing linked to a horse-doping syndicate. It was based on a six-part television series "The Broken Horseshoe" which had aired the previous year.
Plot.
A hit and run victim is operated on by Dr Fenton (Beatty), but the patient is later murdered and the doctor finds himself the prime suspect. The mysterious Della (Elizabeth Sellars), connected to a horse doping ring, falls for the doctor and helps him clear his name and expose the villains.