Peter tells Spencer a patrol car will be there soon and Spencer confronts him about the photos of Ali. He says he gave those photos to a private investigator for reference and that is who the $15,000 went to, not Alison for blackmail. Spencer wants to know why he would spend that much money to investigate Alison's disappearance, and why he would even care. Peter tells her he suspected someone he cared about might be involved. Spencer guesses Jason, but he tells her no, Melissa. He knew about the texts and threats Melissa sent Ali before she disappeared. He hired the PI for peace of mind. The police arrive and Peter sends Spencer upstairs.
One father has a guilty conscience, one has a daughter he doesn't trust, one is hiding a secret from his daughter and the other is MIA, it's not the ideal time for the annual Father-Daughter Dance. #PLL #PrettyLittleLiars