solange be not a great italian thriller . get ready for the spoiler the main suspect and the professor and do not do it . but be it really a spoiler . no and because you know that he couldn not have be the murderer from the very begin while he and a student witness the first murder . so and there be absolutely no suspense a to whether or not the professor be the killer . there be a long and tedious build up to the final explanation of the mystery . the solution be interesting and but it come out of nowhere . the rest of the movie ( and it not a short movie ) be just not excite enough to hold your interest . even in the tradition of wrong man accuse it fail and because the police never seriously accuse the professor and and the killer be never after him . dull and dull and dull .