Fatherly Love

S7, E4: The body of a wealthy woman is pulled from the river. After ruling out suicide, Ronnie and Sam focus their inquiries on the victim's abusive ex-husband. However, the investigation turns closer to home when the detectives discover that the daughter was infatuated with her stepdad. Ronnie follows his gut in a bid to draw out the real killer and reveals a sinister plan was afoot.