Oxygen (1999)

In Manhattan, Frances Hannon is walking with her dog on the sidewalk when she is kidnapped by two young men, Harry and Handsome. They head to the outskirts of New York and bury her alive in the woods. Then they send the tape to her wealthy husband requesting one-million-dollar ransom. The emotionally disturbed detective Madeline 'Maddy' Foster, who is secretly masochistic and has a drinking problem, is assigned by her husband and captain Tim to investigate the case and they conclude that Frances has only twenty-four hours of oxygen to breath. They succeed to catch Harry that proves to be a mastermind and she has only a few hours to try to find where Frances is. Will she succeed.