On a party line with Phone Booth
Dialing almost the same number, this thriller is just as tense and engaging as PB, though the circumstances and environment are different: Liberty is handcuffed (rather, told at gunpoint to do it herself) to a hot dog cart and kept on a cell phone wired to a bomb in said cart. PB on the other end is a man held down under sniper fire in a, well, phone booth, tied to a land line. They're both tightly-wrapped mind games that I would think are sure to be enjoyed.