British Prime Minister Winston Churchill suffers from a stroke in the summer of 1953 that’s kept a secret from the rest of the world.

Young socialite Iris Carr befriends an older woman while traveling solo by train. When Iris wakes from a nap, the woman is gone and other passengers claim she never existed.

In London, a drug dealer grows increasingly desperate over the course of a week after a botched deal lands him in the merciless clutches of a ruthless crime lord. The…