Beth Raymond is a college student who begins losing all her friends after one of her classmates is found dead. She doesn't understand why. All she knows is that each of her friends received a voicemail on their cell phones, one that told them when they would die and what they would say at the moment of their death. Each time a person gets a call, his or her phone plays a quiet music box lullaby instead of its normal ring tone. After the person hears the message, they begin to see disturbing things. As soon as they die, they cough up a piece of hard candy, after which their cell phones dial another number, notifying the next person to die on the list. Beth eventually gets the call. With the help of Officer Jack Andrews, Beth hopes to solve this mystery before her time runs out.