Maggie (Melissa McCarthy) and her son Oliver (Jaeden Lieberher) live a life of dependence on each other. Under great pressure, Maggie has to work overtime in the hospital to make money, so she is naturally unable to take care of the young Oliver. So Maggie entrusted Oliver to her neighbor Vincent (Bill Murray), an elegant old man who looks elegant. However, the real Vincent has a bad temper, is addicted to alcohol, and is addicted to gambling. He even takes Oliver to the nightclub with the stripper Dhaka (Naomi Watts). Oliver witnessed Vincent's "evil deeds", but interpreted them with a childlike kind eye. Over time, a solid friendship was established between Vincent and the little boy.