Londoner Matthew Harris (Paul McGann) feels he's destined for more in life than being a hospital porter. After a doctor who resembles him dies in a car accident, Harris takes it as an opportunity to improve his lot. Assuming the man's identity, Harris nabs a position in a Bristol emergency room. There, he embarks on a romance with nurse Christine Taylor (Amanda Donohoe). But before long his past -- and his lack of medical experience -- come back to haunt him.