After a doctor is called to visit a crumbling manor, strange things begin to occur.

An alien touring the galaxy breaks away from her group and meets two young inhabitants of the most dangerous place in the universe: the London suburb of Croydon.

Ivan Locke, a dedicated family man and successful construction manager, receives a phone call on the eve of the biggest challenge of his career that sets in motion a series of events that threaten his carefully cultivated existence.