Carnivalesque - Neil Jordan

To Andy and his parents, it looks like any other carnival: creaking ghost train, rusty rollercoaster and circus performers. But of course it isn't. Drawn to the hall of mirrors, Andy enters and is hypnotised by the many selves staring back at him. Sometime later, one of those selves walks out rejoins his parents – leaving Andy trapped inside the glass, snatched from the tensions of his suburban home and transported to a world where the laws of gravity are meaningless and time performs acrobatic tricks. And now an identical stranger inhabits Andy's life, unsettling his mother with a curious blankness, as mysterious events start unfolding in their Irish coastal town...