S4·E7 Original Sin

As Christmas nears, Rachel and the VCTF work into the night in search of a twisted serial killer (guest star Ben Bode) who goes online to select his victims, all of whom are carefully screened, seeking a candidate he can make over into his ideal woman. At the same time, Rachel is surprised when her troubled brother, Danny (guest star Rafael Sbarge), drops in from out of town and displays telltale signs of substance abuse. Also, Rachel confronts George about his own addiction to pain pills and other drugs.