When a young woman dies following a routine procedure in the operating room, Melinda uncovers the truth that the doctor is secretly suffering from dementia and made a mistake during the women's operation that caused her death.

Soon after Melinda's car is stolen by a troubled teenage boy, Kirk Jensen, Kirk's dead mother, Lacy, sends Melinda messages through Electronic Voice Phenomena (EVP)or "white noise" in her car radio and other electronics.