El hombre que debía una muerte (English: The Man Who Owed a Death) is a 1955 Argentine crime film directed by Mario Soffici and starring Amelia Bence and Carlos Cores.
When Don Roque winds up dead in an "accident" at work (devised by Rossi, Reyes and a foreign hitman), Leonor and Héctor inherit both his manor at Buenos Aires and his fortune.
The next step is killing Leonor, so Rossi, as a game, tricks her into writing a suicide note and leaves the gas running on her as she sleeps.
Pressured by Celina, who wants to return to Héctor as quickly as possible, and the hitman, who still claims part of his share, Rossi decides to kill Leonor during their honeymoon back at La Rioja.
Back at Buenos Aires, the hitman is wounded in a gunfight while trying to cross over to Uruguay, but dies before being able to clear Don Roque's partner, Carlomagno, from suspicion over the "accident".