After a bank robbery gone wrong, three brothers head for home, hoping their mother can provide them with a getaway. One of the brothers has been stabbed and their partner has made off with the cash. But when the brothers get home they find their stuff is gone and mother's nowhere to be seen -- she lost the house in a foreclosure and the new owners are having an ill-timed birthday party. Soon Mother arrives and it becomes clear that she will do anything to protect her boys -- over a terrifying evening she takes control of the situation and masterminds her son's escape -- but at what cost for the new owners and their guests?