This extremely creepy, offbeat British thriller has a truly great opening shot and is effectively made and very well acted (the director apparently knew which of his younger actors were the more gifted ones, and he gave them the bigger parts), but it also stretches credibility at several points (the behavior of the new teacher often seems irrational - he could just run away, or he could inform the police directly, but he does neither of those things; instead, he endangers his and his wife's lives), the final twist (about the identity of the "ringleader") is rather predictable, and the eternal absence of "Zigo" is never dealt with - it's like a joke without a punchline. **1/2 out of 4.

"Unman, Wittering and Zigo" is a thoroughly peculiar and strangely uncanny gem from the early 70's Brit-movie industry; an era where lots of long-lost forgotten movie classics are still waiting to be re- discovered by cult fanatics. The film lacks explicit bloodshed or exciting actions stunts, but it thrives on ominous atmosphere, a solid and complex screenplay and impeccable acting performances. David Hemmings, perhaps the most shamefully underrated actor/director to come out of Great Britain, stars as a young and still ambitious teacher who enrolls in a strictly catholic male boarding school in the remote British countryside. He takes over class Lower 5-B since their previous teacher died in a most unfortunate accident when he fell off a cliff. When trying to bring some order and discipline amongst the rebellious young men and threatening to give them Saturday afternoon detention, one of his pupils suddenly states: "our previous teacher also wanted to that … and that's why we killed him, Sir". From that moment onwards, the students are provide more and accurate proof that they, in fact, did kill their previous teacher and scare Mr. Ebony into believing that the same might overcome him or his lovely wife Sylvia. Obviously no one believes him – not even his wife – and the pupils continue to push further their blackmail and menacing. "Unman, Wittering and Zigo" (the title refers to the last three names on the alphabetic list that Mr. Ebony runs through to see who's present in class) is a slow-brooding chiller with an immense claustrophobic power. By this I mean that director John MacKenzie manages to make it so obvious that nobody in John Ebony's immediate surrounding even suspects the pupils of anything, whereas he finds himself trapped in a isolated situation of fear from which he cannot escape. To everyone else, the pupils of class Lower 5-B are sophisticated and well-mannered young men and only their teacher knows that they're actually deeply disturbed and nihilistic psychopaths. There are a handful of truly powerful and perturbing sequences, including near the end with John's wife trapped in the school's gym, as well as a terrific use of the contemporary British life-styles and the remote setting. Unfortunately, the film also contains a few defaults, like a largely unsatisfying climax and some dead-end plot lines, but overall I would definitely say this is a gem well worth seeking out and treasuring.

I came across this obscure and barely released film by chance,intrigued by it's synopsis. And like it happens with every buried treasure it was a revelation. Director John McKenzie, and cinematographer Geoffrey Unsworth, skilfully made this film into a close knit mystery with a bit of a disappointing ending which doesn't hurt the overall impression.David Hammings is a new teacher at a boarding school who gets to teach a class from hell. Not by violence, but by sinister mind games,and subtle or not so subtle threats, they creep him into playing their game. What will happen is there to be seen. There is no need to explain why they are so twisted, there can be many reasons, and the boarding school system with it's rigid rules can be one of them, but than again, it may not be.This movie is not on DVD and it probably will never be, but mystery film buffs, if you come across this gem, be sure not to miss it.

I have been scratching my head for years trying to remember the name of this brilliant film and now I have found it. It definitely deserves another outing, I saw it years ago, it scared me witless then but I would love to see it again.It reminded my of my days at boarding school although thankfully not quite so gruesome.The pace of the terror is kept up throughout the film and I have kept an eye out for it hoping that one day it will be shown again.It has not happened yet but maybe one day someone will dig it out of the vaults dust it off and give it another showing. It is an extremely well made film.Very well worth watching and I give it my own rating of 100 out 10 !!! It has been made the way "terror films" ought to be made, in the style of "Hammer Films" and "House Of Horror".Incidentally Roy Skeggs, who produced the "Hammer House of Horror" films in the 1980's later went on to buy the remains of the original defunct production company.