Interesting, although not completely well-made, example of the Italian supernatural thriller, "L'assassino ha riservato nove poltrone" is a movie that suffers from a lot of shortcomings, but still it moves and after all convinces the spectator. It has to its credit the well-built atmosphere of discomfort and psychological perversion, the good art direction and the costumes. The script suffers from a lot of holes and clear improbabilities, but still it can hold the spectator's breath with a plot that is quite original, although the spooky theater under a curse is a fairly recurrent element in the tradition of Italian horror (I remember Renato Polselli's "Il mostro dell'Opera", Michele Soavi's "Deliria", as well as the well known "Opera" and "Il fantasma dell'Opera", directed by Dario Argento). Apart from this, there's a good dose of pleasant and sexy female nudes and the usual lesbian background to whom no Italian thriller can renounce. Taking everything into consideration, I can say this is a quite good movie, charmingly rough in the development of the plot, in the direction and in the acting (all the actors are habitué of the popular genres of Italian cinema), but it's also an interesting and amusing movie you can enjoy.