Stepmom - Maggie Robb

Telling the story of an unlikely friendship, STEPMOM, is a moving but ultimately uplifting tale. Two remarkable women, Jackie, a divorced mother of two, and Isabel, the career-minded girlfriend of Jackie's ex-husband, Luke, continually clash over the well-being of Jackie and Luke's children. But when Jackie discovers she is terminally ill with breast cancer, she finally has to come to terms with her husband's second wife for the sake of her children.

Because of Jackie's illness, she and Isabel find friendship and mutual support as Jackie teaches the woman, who was her rival, to mother her children.