 Upon its release, contemporary critical opinion was mostly positive. Bob Martin, editor of Fangoria, reviewed the film before its formal premiere and proclaimed that it "might be the exception to the usual run of low-budget horror films". The Los Angeles Times called the film an "instant classic", proclaiming it as "probably the grisliest well-made movie ever." In a 1982 review, staff from the trade magazine Variety wrote that the film "emerges as the ne plus ultra of low-budget gore and shock effect", commenting that the "powerful" and inventive camerawork was key to creating a sense of dread.
