When her plane is delayed overnight and the stop-gap accommodation provided by the airline proves to be seriously lacking, Gaby Struthers finds herself forced to share a hotel room with a stranger: a terrified young woman named Lauren Cookson - but why is Lauren scared of Gaby in particular? She won't explain. After blurting out something about an innocent man going to prison for a murder he didn't commit, Lauren clams up and refuses to say any more. Unwilling to let it drop, Gaby does an internet search for Lauren's name, and finds that her strange roommate is indeed linked to a murder case. That's when Gaby realises that Lauren's presence on her flight can't be a coincidence. Because the murder victim is Francine Barry, wife of Tim Barry, the only man Gaby has ever really loved. Tim has confessed to killing Francine and even provided the police with evidence. There's only one problem: he claims to have no idea why he did it ...