It was filmed in just 12 days and takes place almost entirely in real-time within the booth. 3. Community Perspectives

The film is often described as a "modern morality play," where the protagonist must confess his lies—specifically his infidelity—to stay alive.

“Phone Booth is a suspense/psychological drama film... it's an examination of one guy being psychologically manipulated and tormented by an unseen antagonist who could kill him at any moment.” Quora · 8 years ago