'M' as in Mathieu

The film centers around Mathieu, who is taken from the hospital by his wife and brought to an apartment. After she returns to their son, Mathieu reveals his feelings for another woman, who bears a striking resemblance to his wife. This twist leads to a series of intense encounters, culminating in a dramatic moment where Mathieu's actions blur the line between reality and reflection.

'M' as in Mathieu features performances by Brigitte Fossey, Sami Frey, and Bulle Ogier, who contribute to the film's exploration of love and desire. The film's narrative delves into themes of infidelity and self-perception, making it a reflective piece on human relationships and emotional complexity.