How many hours did you sleep last night? Do you count things for no reason? Have your thoughts ever been controlled by someone outside of you? Prevention plays a growing role in mental health. Instead of curing people, the objective is to prevent disorders by collecting enormous amounts of data. IF ONLY NIGHT WOULDN'T FALL questions this development.

In three interwoven stories - in The Netherlands, Norway and the USA, we observe different stages of prevention: from children at a primary school that get an "early intervention" to keep away anxiety disorders at a later age, to a young man that tries to avoid a new psychosis. A next level is reached in Florida, where a city without friction is built in order to make all residents happy.
 As in a disquieting investigation, the protagonists in this film are being measured and questioned all of the time, for their own benefit. But what gets lost in this quest for our optimal selves?