Thomas Tellman, an RAF pilot who disappeared pursuing a UFO in 1948, unexpectedly returns entirely un-aged to a small town on Scotland's north-east coast. He finds that his 7-year-old daughter is now a bed-bound 87-year-old woman suffering from dementia. She greets him as her father but others assume she is deluded and that Thomas is an unhinged impostor or con man. While Thomas endeavours to blend in to an ordinary life, his presence gradually...