So turgid with its own premise it misses the point spectacularly, with even the actors looking bored come the finale. It’s adapted from the 2010 novel of the same name by Joe Hill (son of Stephen King) and stars Daniel Radcliffe as the hopeless sod who is accused of murdering his girlfriend and is so enraged by this that he sprouts horns from his temples and with them gains the innate, and completely without off switch, ability to bring out the worst in people, inducing them to not only speak the truth but also to give in to whatever base and carnal whim happens to be floating around their subconscious at the time. This aspect sounds quite promising, unfortunately the film only plays with it about circa fifteen percent of the time – the rest is spent watching Radcliffe moan endlessly about his horns instead of using them to have fun, and us the audience being forced to endure a constant traipse through the dullest murder mystery ever when it is painfully obvious who committed the crime in the first place, and we don’t really give a monkey’s about it in the second. Culminating in wasted special effects and dull acting in what is altogether a pathetically watered down version of what could have been. Also with Juno Temple, Max Minghella, Joe Anderson and David Morse.