The Demon Stirs (2005)

Around forty, the human male used to leave his "used" wife to go and run in the green pastures. Anne experiences it with Julien, the man of her life. After fifteen years of living together and an adorable little boy, she has to face the facts: Julien has fallen "in love". Blind, then revolted and leaving in search of lovers, she ends up learning to live with a reality that she wanted neither for herself nor for her son. And like all major crises in life, her pain echoes others more buried, from childhood. But all this pretty chaos allows her to discover an ability she never knew: the ability to laugh about it.