On February 26, 1920, Robert Wiene's world-famous film The Cabinet of Dr. Caligari premiered at the Marmorhaus in Berlin. To this day, it is considered a manifesto of German expressionism; a legend of cinema and a key work to understand the nature of the Weimar Republic and the constant political turmoil in which a divided society lived after the end of the First World War.

Like every year, André, manager of a company named ALTER NATIVE that furnishes sanitary article, invites his seven employees to a quietly festive Christmas weekend. Yet, unlike the years before, André has bad news. He is terminally ill and wants to hand over his company to one of them. He will announce his successor in the course of the weekend. His collaborators immediately turn into competitors. When his own son, Philippe, whom nobody knew about, makes a sudden appearance, cards are redistributed, but suspicion quickly arises that André plays a deceptive game. While his employees, in a crazy race behind the back of the others, try to make their mark, Philippe tries to understand the obscure game his father is playing. And what role does the hotel owner play in all this? Jingle bells? Jingle bells!