Dead in 3 Days

"In 3 days you're dead!" At first, Nina and her friends think this SMS is just a stupid joke. But no one is laughing when Nina's boyfriend is found tied to a concrete block at the bottom of a lake the next day. When another member of the group is savagely attacked everyone is paralyzed with dread. They're all on the murderer's list. But why? Nina is the only one who discovers a mysterious clue leading to the brutal killer's identity. As the body count rises and the slayings become more and more vicious, still no-one believes her and time is running out .