This French sex farce is translated in English as The Trout. Joseph Losey directed and co-wrote the film, which stars Isabelle Huppert as Frederique, a young woman living on her family's rural trout farm. Frederique is trapped in a dull marriage to a rube. She decides to leave him and the trout farm for the city; she wants to make her living in the financial sector. She ends up in a cutthroat corporate world and meets up with the sophisticated Lou (the legendary Jeanne Moreau). Frederique finds herself trading sexual favors for corporate advancement and becoming more deeply involved in a complicated series of business dealings. Eventually, she longs for a return to her simpler life on the trout farm.
by Michael Betzold synopsis