Kyle is loyal to his wife, his best mate and his boss in the Ulster Defence Union – and they love him as a husband, a brother and a son – but, with changing times and the emerging peace process, Kyle finds himself lost in the shadows of transition, uncertainty, and betrayal. In a world turned upside down, peace and brutality walk side-by-side, while love and loyalty are sacrificed to the new order. "As the Beast Sleeps" is set in Belfast's Protestant Rathcoole housing estate and explores with an up-to-the-minute urgency, the fragmentation within an extended family of loyalists in the context of the current cease-fire.

The film tells the story of two boys who become friends at the start of the Troubles in 1970. The boys share an obsession with Butch Cassidy and the Sundance Kid, with the consequence that they run away to Australia.

A crew of hardy road workers, led by a bickering Father and Son, must survive the night when they accidentally awaken an ancient Irish vampire.