The plot of the film is about a secret love story between two siblings and their husbands living in the same house, two young couples secretly having sex every evening. At night, the older sister fucked her younger sister's husband, at night it was the opposite, the younger sister was fucked by her older sister's husband, they took turns pleasuring themselves and never got bored as their secret love affair was always exciting and dramatic. The other person's husband/wife is lying next to...