When an Ad Exec's husband suggests a third in their bed to spice up the marriage, she invites her female trainer, who turns out to be bent on revenge.When an Ad Exec's husband suggests a third in their bed to spice up the marriage, she invites her female trainer, who turns out to be bent on revenge.When an Ad Exec's husband suggests a third in their bed to spice up the marriage, she invites her female trainer, who turns out to be bent on revenge.