Movie News and Discussion

The original post: /r/movies by /u/FoodMadeFromRobots on 2025-01-04 18:27:22.

I know this is way late but rewatched the movie last night (holds up amazingly) but have a question.

Towards the end caleb gets Nathan drunk and then (unknown to the audience at that time) reprograms the security system so that it unlocks in the event of power outtage. He then tells Ava to do a power surge at 10pm the next day. The following day he tries to get Nathan drunk again only for Nathan to reveal that he had a battery powered camera installed and knows what they are planning. At that point the power shuts off ava escapes leaving caleb trapped etc. etc etc.

But my question is on the night that Nathan did get drunk and caleb reprogrammed the security system, why not leave right then? Ava could easily have power surged while nathan was passed out moments after caleb reprogrammed the system, why wait another 12/24 hours?