His father (Jean Rochefort) hires a woman (Dominique Blanc), whose husband has been reported missing in the First Indochina War, to take care of things while he is away.

The maid's son, Charles (David Behar) moves in as well, and the two parents hope that the two can become friends; they become enemies immediately after meeting each other.

Je suis le seigneur du château might be compared by some to the Macaulay Culkin film The Good Son, with its similar storyline.

[citation needed] The movie was recently repacked with La Femme de ma vie in a 2-DVD set.

One sees also the countryside of the Huelgoat region and the town of Morlaix (the viaduct and the little streets around the church Saint-Melanie).