Sadek, a young Tunisian in Zurich, works as a delivery driver for the Perret chocolate factory and regularly tries his luck at the casino. At the factory, he is drawn into the slippery world of Jean-Charles, the son of factory owner Sophie Perret. As a destructive fungus threatens cacao cultivation worldwide and the Perrets begin developing a synthetic chocolate, Sadek's dedication and sense of taste soon draw their attention.