Hearing from his wife that his widowed mother-in-law, who lives alone, is sick in bed with a cold, he goes to check on her on his way home from work. He is shown into the living room and notices a DVD player playing on the turned-off TV. He discovers something that has been hastily thrown underneath it, and is convinced that she was masturbating... Introducing five pairs of forbidden love stories between bewitching widowed mothers-in-law and their daughters-in-law!