Every night, with the twelfth stroke of the clock, the little ghost of owl stone castle wakes up and goes exploring. At one o’clock sharp – without meaning to – he is dead tired and falls asleep in his oak crate in the attic. But the little ghost would love to haunt the castle at daytime. His friend, the eagle owl Shuhu, can not help either. He only knows that every ghost has a clock that governs his time.