Bastards (2013) aka Les salauds
2013Marco returns to Paris after his brother-in-law’s suicide, where he targets the man his sister believes caused the tragedy. He gets into an an affair with the man’s wife in the process.
Cheats with husband’s competition/rival/enemy
Challengers (2024)
2024A wife cheats on her pro-tennis player husband with another tennis player on the night before the two men’s final match.
The Hunter’s Silence (2019)
2019A rich brat who is in conflict with a park ranger for hunting illegally in the park, screws the park ranger’s wife.
Ascension (TV Mini Series) (2014)
2014Inside a starship that is on a century-long voyage to populate a new world, the captain’s wife is cheating on him with a councilman who wants his position, the chief safety officer’s wife is cheating on him with a black young commander, and a chick who recently died may have cheated on her boyfriend when she was still alive.
Evil Night (1999)
1999A wife makes love to a fugitive after he saves her and her baby from a serial killer/rapist.
Crazy (2008)
2008A wife screws a handsome music producer whom her musician husband is at odds with when she gets tired of being left alone at home while her husband goes on tours.