Due to a comment on this film, I thought it would have some similarity to "The assault", a very good 1986 dutch film of Fons Rademakers.
It was my first disappointment, because it differs greatly in its quality and cinematographic development, beyond the fact that the story is about an adult tormented by a tragedy suffered as a child (adolescent in the case of Dutch cinema), who wants to know details about what, On one fateful night, it really happened.
I found some similarity with "Never look away", a 2018 German film that shows a boy influenced by his eccentric and a little crazy aunt (here is the mother of the protagonist who has these characteristics), but also, by the way It was filmed, I saw a similarity with some productions by Michelangelo Antonioni, which I did not like very much but were highly appreciated in the sixties, such as "The adventure" (very good photography, unlike the film I am reviewing) and "La notte".
Perhaps this similarity to Antonioni's cinema explains why "Sweet Dreams" has had ten nominations for David di Donatello, including Best Picture.
But I did not like it.
The plot is confusing, with somewhat discordant comings and goings from different eras, a slow pace that seemed somewhat boring to me, dark colors and an exaggeratedly gloomy atmosphere, spoiled emotional scenes and inconsequential performances, except, perhaps, that of Bérénice Bejo, who did not can stand out a lot given the brevity of her role
I rate this film with 5.5 points (between barely acceptable to mediocre) and I only recommend it to those who appreciate this type of cinema, filmed in a relatively original way, but, in my opinion, very neglected.