El Alma del Muerto(2021)

When Roque learns that his ex-girlfriend, Mili, is in a relationship with Cecilia, a woman who severely abuses her, he decides to go and rescue her. Upon arriving at the house, after an argument, Roque fires his gun and ends up killing Cecilia. But when the dead don't rest in peace, it's because they have unfinished business with the living.