Murder in Mind: 2x3

Rage

Edward Buttimore is a single man in his 40s living with his mother, Rose. One day, in a moment of a road rage he kills a man on isolated country road. He attends the funeral for the victim and preteds befront of everyone that he is an old friend of his. Soon he befriends his wife, the widow Samantha Johnstone, who leans on him for support when she discovers that her late husband was leading a double life.