All In

In the hotel suite, the team analyzes the killer’s pattern, deducing the ritual involves nine victims over a repeating cycle. They suggest a cult may be responsible. Lia confirms their theory but suggests that the current UNSUB cannot be a member, as the cult would have killed him for publicly exposing their secrets. Announcing her intention to play poker, Lia warns the team not to follow her. As she leaves, her tough façade breaks, revealing a more vulnerable side that Cassie mentally identifies as Sadie, Lia’s name in the cult that raised her. She adds that if the UNSUB were a true cult member, he would already be dead.

Outside the Desert Rose casino, the UNSUB mentally reviews his ritual. He has murdered four of nine required victims and now plans the next five. He considers himself an apprentice following a three-year cycle of nine distinct methods to prove his worth. He believes his flawless execution will compel the cult, the Masters, to grant him membership. Driven by a need for acceptance, he enters the building to prepare for his fifth kill.