Per ABC's website: If you told PETER DUNLOP that someday he'd be a Medicolegal Investigator for the Philadelphia Medical Examiner's Office, he would've called you crazy. After all, when you spend the better part of your life as a cop, learning the intricacies of sectioning a lung isn't at the top of your wish list.But after a gunshot ripped through his shoulder during a convenience store robbery, Peter found himself off the streets and inside a rehab facility. Three months of physical therapy later, he had found his true calling: medicine. As partner and confidant to Dr. Megan Hunt, Peter now finds himself investigating Philadelphia's most mysterious medical cases alongside one of the most brilliant Medical Examiners in the country.