The obvious inspiration for Under the Silver Lake are the slightly aimless, morally ambiguous California private eye films of the 1970s like The Long Goodbye and Night Moves.
The mystery Sam stumbles upon is entirely incomprehensible to everyone but him — including Under the Silver Lake viewers.
A fair number of festival audiences were put off by Under the Silver Lake’s convoluted plot and its excessive sexuality and nudity.
I imagine plenty of people will hate Under the Silver Lake for the way it embraces this archaic style at the expense of modern tastes.