François Maréchal's life is calm and happy. Married to a young and pretty woman, he's the father of a small boy and has just been promoted - he's now the manager of a video store. Everything seems to be going wonderfully in his well-ordered life - up until the day that Singin' in the Rain comes out on DVD and François is caught in the spell of the wonderful world of musicals. He very quickly reaches a decision: he wants to become a tap dancer. Turning his back on his peaceful happiness, he dumps his wife, child and job to live his sudden, all-consuming passion. A mediocre but persevering dancer, he finally manages to exercise his craft in a provincial nightclub and must confront his past in the shape of his father, whom he thought was dead. Like François, many years ago he'd left home and hearth to become a tap dancer.