In this film based on Dick Francis' mystery novel, Alan York (Scott Antony) is stunned when his dear friend, skilled jockey Bill Davidson (Ian Hogg), is killed during a simple steeplechase. Convinced Davidson's death was no accident, York begins an investigation with a suspicion that Davidson's racehorse, Admiral, was drugged in a murderous act of sabotage. Assisting him as he delves into this world of high stakes, horses and gambling is Davidson's devoted widow, Laura (Judi Dench).