Upon learning that her son-in-law can no longer have an erection, Mrs. Rose promises her daughter that will help her discover the reason for his constant failures in bed. The careful mother suspects that the guy is cheating on her daughter and secretly prepares a loyalty test...

For convenience’s sake, Daniel continues to live with his stepmother after the death of his father. The constant quarrels between them persist, but there is also a secret sexual attraction forming, which is obviously dismissed by both due to their family relationship...