Consumed with grief and infuriated by the Lausanne authorities’ inability to apprehend a suspect, Diane (Emmanuelle Devos) becomes convinced that a certain vintage mocha-colored Mercedes was the vehicle that killed her son in a hit-and-run; that Mercedes is owned by Evian beauty salon proprietor Marlene (Nathalie Baye). Diane poses as a potential buyer of the Mercedes so as to get close to Marlene and, when the moment is right, exact her revenge.

Showcasing the talents of two of France’s finest actresses—and utilizing Lac Leman, the lake that serves as a border between Switzerland and France, to great metaphoric effect—Moka is a riveting thriller driven by loss, suspicion and duplicity.