The discovery of a beaten infant leads detectives on a search for the attacker, who may be a pedophile. When the medical evidence shows the injuries were a result of shaken baby syndrome, their focus shifts to those closest to the child: her mother, the mother's boyfriend and the nannies.

A boy is accused of being molested after his soccer game, but he doesn't admit to it. His principal and his soccer coach are the prime suspects.

After a dating service is linked to three rapes, Olivia goes undercover to ferret out the rapist and meets Mike Jergens, a surgeon who enjoys controlling the women in his life. The detectives are soon led to his girlfriend, Cora Kennison, but shortly after testifying in the grand jury hearing Cora marries Mike. After Cora attempts suicide, Mike fights her mother, Virginia, to unplug her feeding tube.

The only witness to a young woman's horrific beating is her mentally challenged daughter.

When a polygamist's wife is murdered, he believes it's related to a recent criminal case he was testifying in, but detectives believe it may be connected to his culture.