cellular (2004)

jessica martin, a science teacher in a high school and a mother, is the victim of a kidnapping consummated in her home by five unknown men who take her away to a mysterious place. terrified and completely unaware of the reasons for her abduction, jessica tries to get a broken phone to work and then dial an unknown number in the last desperate attempt to save herself. ryan is the carefree young man who answers the desperate call and suddenly finds jessica's last hope. without knowing anything about jessica except his terrified and excited voice from the other end of the feeble cell phone connection, ryan comes, in spite of himself, catapulted into a world full of pitfalls and murders in a frantic search to find and save the woman. the lives of jessica and her family are in her hands.