7Who's making a bad neighborhood even worse?

Twenty years ago, kids started turning up dead, chopped into pieces and stuffed into suitcases.

Ten years later, nuns were getting murdered right in their convent, while local children were being abused by the people who were supposed to protect them.

Unfortunately for Chicago P.D. Detective Hank Purcell and his partner Marvin Bondarowicz, the neighborhood's gone downhill since then.

When a string of seemingly unrelated killings breaks out around Humboldt Park, they begin to wonder if something more than the usual mobsters and gang violence might be behind it. They're pretty sure they aren't going to like the answers...