opera be a great film with some wonderful and imaginative imagery . an opera singer ( cristina marsillach ) be be stalk by a killer who force her to watch him murder everyone she know by tie her up and tap needle under her eye . this idea of the needle come from the fact that argento doesn not like it when people cover their eye while watch his movie . for year i have be annoy by people cover their eye during the gorier moment in my film . i film these image because i want people to see them and not avoid the positive confrontation of their fear by look away . so i thought to myself how would it be possible to achieve this and force someone to watch most gruesome murder and make sure they can not avert their eye . the answer i come up with be the core of what opera be about . say argento . plenty of suspense and wonderful cinematography and brutal and gory murder . one guy be stab in the throat with a knife cause a gushing wound and daria nicolodi get shoot in the eye while look through the peephole and etc . for anyone who hasn not catch this one yet and give it a try . highly recommended .