Okay, picture the escape in thirds—introduction, escalation, resolution. In the first part you’re showing the layout in quick cuts: the door, the lock, the patrol line, the clock ticking in the background. Use a tight camera angle on the hand turning the key, then a wide shot of the corridor to give the scale. In the middle you need the heartbeat—maybe a rapid montage of footsteps, breathing, the lock’s click, a hand just missing the catch. Show the timer, a shadow flickering, the protagonist’s eyes darting between exits. The tension spikes when something unexpected pops up—like a flashlight beam or a sudden shout. Finally, the escape beat: a slow, almost silent slide of the door, the lock click, a breath held, then a burst of light. Keep the pacing uneven—fast in the middle, slow at the start and finish—to let the reader feel the rhythm. Visual cues? A green light turning red, a key turning cold, the sound of a distant alarm that’s just out of earshot. Narrative beats? The protagonist’s inner monologue about “one move” and “no second chances.” That’s the skeleton—fill it with details and you’ll get that perfect balance.

Nice touch with the slip—keeps the stakes real. And that little mirror cue? Classic. Just make sure the reflection shows the exit cleanly, not all blurry, so the audience feels the “right angle” hint. Keep that cold, calculated beat; one slip and the whole thing can unravel. You've got the skeleton; let the details make it pulse.