Dead Cert is a 1974 drama thriller directed by Tony Richardson. Bill Davidson (Ian Hogg) is a horse owner who decides to ride his own horse in a horse race. His horse suddenly behaves strangely and as a result, Bill falls and later dies from his injuries. Bill's friend, Alan York (Scott Anthony) refuses to believe that this was an accident and begins to further investigate, with the help of Bill's wife, Laura (Judi Dench). He suspects that the horse was possibly drugged. He is sure someone was out to get Bill and they may be after him as well. He and Laura have placed themselves in grave danger, but Alan continues his search for the man responsible for his friend's death. Both their lives are at serious risk. Will they find the man who is responsible and finally bring him to justice? Watch Dead Cert and find out what happens.