Katie Brashers announced to her friends that she was taking a trip to Florida for Spring Break, but when class resumes, Katie isn't in attendance. The school staff claims that the family moved there. Katie's friend Michelle Martin grows suspicious, especially since she let Katie borrow a treasured family book that she failed to return. Not to mention, Katie never said goodbye to her devoted boyfriend, Brad. Michelle confides in her best friend, Tami. Dodging Michelle's demanding mother, they team up with Brad and form their own investigation by talking to neighbors and looking inside Katie's house. Michelle is about ready to give up until she takes her dog on his daily walk and uncovers a clue that leads her closer to the truth, but also throws her into circumstances beyond her control.