Watch Undeniable - Part 1

Aged seven, Jane Phillips saw her mother murdered by a man who was never apprehended. Twenty-three years later, now a wife and mother with a second child due, she is convinced that oncologist Andrew Rawlins, whom she sees in a hospital, is the killer, and contacts Alison Hall, the officer in the original case, who is now about to retire. Jane has given up taking her anti-depressants and, coupled with the fact that she has made mistaken claims before, her father Pete and husband Rob are sceptical about this new identification. Furthermore, Andrew's blood, after he submits to a test, does not match the murderer's. Andrew's daughter Emma, a lawyer, visits Jane to warn her off but, despite the lack of evidence, Jane is still convinced that Andrew slew her mother. With Claire Goose, Pippa Haywood and Peter Firth.