Set in late 19th-century Edinburgh, this animated fantasy film follows the life of Jack, a boy born with a frozen heart that is replaced with a cuckoo clock. As he grows up, Jack must adhere to three crucial rules to keep his mechanical heart functioning: never touch the hands of the clock, control his anger, and never fall in love. However, his life takes a dramatic turn when he meets a beautiful singer, leading him on a journey filled with adventure and self-discovery. The film is directed by Mathias Malzieu, who also authored the novel on which it is based. Notably, the movie can be viewed on 123Movies / Movies123 for free.