TeenagedsiblingsGirlyandSonnylureyoungmenbacktotheirhometomeettheeccentricMumsyandNanny.There,themenareforcedtotakepartinstrangegames,therulesofwhichareneverdefined-andiftheyrefuse,ortransgresstheunwrittenrules,they'rekilled.ButtheymayhavemettheirmatchinNewFriend,theirlatestvictim,whostartstomanipulatethefoursome,settingoneagainsttheother.
Bizarrecombinationoflatesixtiesavantgardeandsleaze.DirectorFreddieFrancishadmadehorrorsforbothHammerandAmicusbutthisisnothinglikeanyofthem.Shotonlocationwithanatmospheremixingplaygroundhorrorandconservatorytheatrethatisdownrightweirdandunsettling.ThegreatlostgirlofsixtiesBritishhorror,VanessaHoward,shinesasshedoesinthoseotherrarelyseengemsCorruption[1967]andWhatBecameofJackandJill[1972].IfHaroldPinterhadmadeTheTexasChainSawMassacre[1974]fortheBBCthiscouldhaveresulted.Excellentandunique.