Seventeen-year-old Gwen, who has been living with her grandfather in Manhattan while she attends music school, joins up with another music student to solve the mystery when her grandfather suddenly goes missing.
Still adjusting to being blind, Alicia must outwit an invisible man who is putting her family and her boyfriend, who was once invisible himself, in danger.
When fifteen-year-old Bobby wakes up and finds himself invisible, he and his parents and his new blind friend Alicia try to find out what caused his condition and how to reverse it.
