The main role of the father is played by actor Andrew McCarthy (possibly)
The conflict at the gas station is caused by their daughter’s desire for a specific drink.
After an argument, the wife and daughter get out of the car to calm down and fall off a cliff by the road.
The main part of the film is a psychological drama and thriller that unfolds in a hospital, where the main character cannot accept the terrible truth and creates a complex conspiracy theory about a kidnapping in his mind.
The movie was made in the USA. I watched it in 2019 or 2020.
Sorry for the mistakes, I don’t speak English well.