When a wealthy woman is found dead at the bottom of her stairs, we realize that this was no ordinary slip-and-fall accident. The team is pressed into a game of cat and mouse with a clever killer determined to get away with the perfect crime. Plus, when Maura decides to undergo minor surgery, the surprising part of her healing will be reconnecting with Hope.

When a bicyclist appears to spontaneously combust, Maura proves his bizarre death is actually a murder and helps catch the science-savvy killer. Meanwhile, Jane's invited to teach a class of FBI recruits at Quantico.