“Nuclear” (** out of four) was a muddled melodramatic thriller about a woman and her mother (Emilia Jones and Sienna Guillory) who attempt to escape from her violent psychopathic brother (Oliver Coopersmith) by seeking refuge in an isolated retreat which is in the shadow of a nuclear power station. Writer/director Catherine Linstrum tells her story with a layer of mood and stark atmosphere but film keeps you at arm’s length with a jumbled and remote sense of cloudy ennui. Jones’ solid performance keeps you watching but there’s absolutely no dramatic payoff.