A baby in a basket is left on the steps of an isolated monastery on a Scottish island. The nuns take it in, planning to care for it until a storm passes. Soon though, strange and unexplained events begin to happen at the convent.

It's 1944 and World War II rages on as the nuns of isolated Scottish monastery St. Augustine's prepare for an incoming storm front. During the night a baby in a basket is left on the doorstep and the sisters take it in to care for it. As the evening goes on, one nun, Sister Agnes soon suspects the child is the son of the Devil.—Shepka Productions