In 2002, Marlyne Johnson was 58 years old and looking forward to the arrival of her first grandchild. When she missed lunch with her daughter-in-law - with whom she was very close - her son and daughter-in-law went to check on her and found her body in the basement of the family home. Marlyne was kind and caring and everyone liked her. So who could have committed such a heinous crime? And when police found the perpetrator, would the family finally find justice?