Angela Hoot is a young tech genius. But when she's kicked off her Masters degree course at MIT for hacking into the computer of a fellow student, she fears she's blown her chances of a glittering career. Angela is wrong. Instead, she's offered a dream internship with the FBI. She jumps at the chance, and is thrown straight into her first case at house in the Boston suburbs where a family of five have been brutally murdered. As Angela struggles to overcome the painful reality of her new job, a phone is found that could hold the secrets of this mass murder – if Angela is unable to uncover them.