L4yer cake: Daniel Craig leads the cast as Mr. X - one of London's most successful drug dealers. He's on the verge of getting out of the game, when his boss asks him for one last favour - to negotiate the sale of 100 hits of Ecstasy. It should be an easy job for a pro like Mr. X, but the trouble is the pills were stolen from a Serbian drug lord who'll cut off his head if he sells them.