When Ivy Wolfe overhears Carter Cruise on the phone, she realizes her stepsister is into girls. Deciding to play a trick on her, she pens a letter and forges the signature stating that it’s from her lover. She gives it to Carter and walks away smiling. The letter asks Carter to be ready at midnight, to have the back door open and the lights off. When Ivy walks into the room at the appointed hour she whispers to Carter in order to make sure she doesn’t blow her cover. Carter has followed the instructions in the letter and has no idea that her stepsister that about to seduce her.