Throttle (also known as No Way Up) is a 2005 American thriller film and a spinoff sequel to Duel (1971), directed by James Seale and starring Grayson McCouch.
He has also discovered identical motel keys in his wife, Molly's purse and his boss's car, leading him to believe that she is having an affair.
Under heavy levels of stress, Tom shouts at the kind old security guard, Eddie, before going into the building.
Tom argues with his boss about it, who tells him that he has gotten in too deep to back out now, as millions would be lost should the process be interrupted.
Watching and waiting, a massive, 6000 pound second generation Chevrolet K5 Blazer SUV whose driver sits hidden behind a veil of tinted glass.
Armed with only a tire iron, Tom goes into the bathroom to wash the pepper spray out of his eyes, and discovers that the driver has attached a hose to the truck's exhaust pipe, and Tom flees his only safe place, which is quickly filling up with deadly carbon monoxide gas.
The carjacker shoots his pistol empty and attempts to tell Tom how he can start the car but he dies before he can get the information out.
A suspenseful game of cat and mouse ensues as the huge truck chases him through the garage's levels.
The killer is revealed to be Eddie, who realized that Tom was only pretending to like him, when everyone else didn't bother to mask their dislike for him.
Tom, despite a broken leg, manages to rescue Molly, who had been bound and gagged inside the toll booth, right before Eddie smashes it with the truck.
Eddie is about to run them both down right as the police, whom Tom had called earlier at the top where there was cell phone service, arrive.