Greg Madden is found dead weeks later. In the months that follow, Zach and Kendall enjoy their time with the newborn child. Problems arise here and there, but none like that of the Satin Slayer, a serial killer murdering the women of Fusion, a cosmetics company run by Kendall and her friends who helped to define it. The Satin Slayer takes Kendall hostage, and when it is revealed that the Satin Slayer is actually Zach's estranged father, Alexander Cambias, Sr., thought to be dead, but obviously still very much alive and that all he wanted is for Zach to have followed in his footsteps, Zach does everything in his power to save Kendall, as it all culminates on a balcony outside of a hotel room. Zach's father sets a contraption around Kendall's neck, which will kill her if its detonator goes off. Zach and Alexander struggle as Zach gets a hold of the detonator and will not let it go, even as he is shot in the arm by Alexander. Zach is able to sneak a spare knife from the sheath at his ankle and throw it hard enough at Alexander so that Alexander drops his gun. Zach rescues Kendall. He is determined to kill his father, but help soon arrives, and Alexander is sent to jail.