Whilst Amer has been compared to the giallo genre, the surrealist imagery and sexual undercurrents struck me as far more Lynchian in their execution. In terms of look and feel, there is more of Eraserhead or Twin Peaks in Amer than anything from the Argento canon.
Amer runs for a shade over 90 minutes, but with several scenes played out in painfully slow real time and with a fragmented and confusing narrative, it comes perilously close to overstaying its welcome.
Visually, Amer is certainly very striking though and the soundtrack is memorable. The violence, when it comes, is convincingly nasty and you'll probably spot a hefty hat-tip to Un Chien d'Andalou.
If art-house surrealism, with a dash of torture-porn thrown in, floats your boat, then Amer certainly ticks all the boxes. If, however, as the blurb suggested you thought you were about to watch something akin to Profondo Rosso or The Bird With the Crystal Plumage, then you may well feel short-changed by this, initially fascinating, occasionally intriguing, but ultimately frustrating movie.