Early on a Sunday morning, a newly awakened and extremely hung over Garcia laments the fact of a huge argument she and Kevin had the previous night. Not one to face confrontation head on, she is not looking forward to her first post-fight talk with him, which will happen sooner than later as she can hear that he will soon finish his shower. That talk will be complicated by the person knocking on her front door. Meanwhile, the team is called to Atlantic City, New Jersey, where Danny Savino, a casino floor manager, was found dead in his office from a severe beating. He had turned the surveillance video off in his office, so there is no record of the unsub. The reason the BAU is called is that Savino has deep ties to the mob, and eight $1 bills were found scattered around an "eight" playing card on his body, which indicates some sort of ritual to the killing. Looking into Savino's background, the BAU learns that he acted as a loan shark to casino patrons on the side, meaning that all of the several thousand people who gambled in the casino are potential suspects. As more and more victims arise, the team recognizes that the killings are related to some system the unsub feels is required in his gambling addiction, which narrows the search geographically to a high stakes poker game at a high end exclusive casino. It isn't until Rossi discovers the one victim that doesn't fit the rest that they discover who the unsub is and where he is headed.
—Huggo