How well do we know our children? Natalie Falcone would say she knows her daughter, Arden, very well. Despite the challenges of running a restaurant and raising six-year-old twin boys, she’s not too worried as she sends her daughter off to college—until she gets the call that Arden’s been in a terrible fire, along with her best friend and cousin, Rory. Both girls are critically injured and another student has died. The police suspect arson.