Ma Liu has a happy family, but a paternity test leads him to learn that his son may not be "his own", and in a fit of grief, he and his wife Niu Yun engage in a battle of wits.
Overview：Ma Liu has a happy family, but a paternity test leads him to learn that his son may not be "his own", and in a fit of grief, he and his wife Niu Yun engage in a battle of wits.
