TWO PLUS TWO (2012)

Diego, Emilia, Richard, and Betina are two couples who have been lifelong friends. At 40, they are successful professionals. Diego and Emilia have a 14-year-old son and an organized family life, while Richard and Betina, who don't have children, lead a more mundane life. One night of celebration, Richard and Betina confess to their friends that they practice partner swinging... and that they would love to share this practice with them. This confession awakens Emilia's dormant fantasies, and she insists that Diego accept the idea.

invitation.