Rent Storage (2009)

After the brutal murder of his father, 17 year-old Jimmy goes to live with his uncle Leonard, an ex SAS officer, who runs a below-ground storage facility In the city. While exploring the maze of corridors Jimmy comes across a deeply disturbed man, Francis, who seems to be hiding evidence of a crime in his unit Returning In the middle of the night and breaking into the man's room, Jimmy uncovers a chilling secret. Not trusting the police, he turns to his Undo and they decide to take the law into their own hands. But soon they realize the situation is not as simple as they believed and discover that once you start down a dark road, it's almost impossible to turn back...