The Accident Seekers(1971)

Three friends give up debauchery and gambling and get hired in the house of a millionaire man. One of these three, who is in love with the millionaire's daughter, is deeply saddened by the fact that he has to keep silent because of an unintentional murder he committed years ago. The objection of the millionaire man to marrying off his daughter leads to his murder, and the three friends are accused of this murder with the evidence obtained.