‘Shrooms’ director Paddy Breathnach still hasn’t the foggiest idea of how to make a horror. Similar in its core conceit to 1978 Aussie shocker ‘Patrick’, Spence Wright’s script shows a comatose young janitor, Kenneth, ‘infecting’ the bodies of others in order to take revenge on the medical students who fed him a cocktail of drink and drugs. The rest is a fanboy’s fun-bag of stuff lifted from ‘I Know What You Did Last Summer’ and sundry J-horror movies. Regretful heroine Catherine (Arielle Kebbel from ‘The Uninvited’) tries to revive Kenneth, but it’s her chemical cocktail that stimulates his violent brain activity, and gory deaths ensue. MyAnna Buring has a cameo as a randy nurse, the bad guy dies too early, women randomly strip down to their bra and pants, and credibility soon evaporates.