The Hook (1976)

For the past months, beautiful Iro, the statuesque trophy-wife of the self-made business magnate Kostas, has been having a torrid affair with the opportunistic young playboy, Nikos, right under her husband's nose. As if that weren't enough, the clandestine lovers contemplate murder, eager to stain their hands with Kostas' blood and get him out of the way. However, the grizzled millionaire wasn't born yesterday. Who is going to win in this dangerous game of deadly passion?