Belfast, Northern Ireland: A man left horrifically maimed by a car accident appears to have taken his own life. It should be an open-and-shut case, but something doesn’t feel right to DCI Serena Flanagan. Flanagan ignores advice to close the case, call it a suicide, and be done with it. As she picks at the threads of the dead man’s life, a disturbing picture emerges, and she realizes the man’s widow, Roberta Garrick, is not what she seems . . .