Turnabout (Reynaud-Fourton)

A long run sensation in Paris, with enough loop the loops to stymie the most fervent crime buffs, Paul and his partner have just eliminated a third partner, with a new radar device as the stakes. But the partner is discovered playing footsie with Paul's wife, so Paul eliminates the partner as well. He then stages a burglary, eliminates the wife, and turns out to have an intimate relationship with the maid. We then learn that he is selling the radar device to the Russians, one of whom happens to be the maid seductress. In the end, the fraudulent Paul turns the tables on everybody, and walks off with all the money.