The outlandish realm of Iris Johansen novels operates on fairly intangible MacGuffins. In Killer Dreams, the thrill du jour is mind control. Here the hyperreality knows no bounds, as sleep scientist Sophie Dunston dodges the schemes of shadowy villain Robert Sanborne, who wants her vaguely defined research to create a zombified army (what else?). Dunston and her young son are protected by trained killer Matt Royd, who ends up being quite the stud for single Sophie. With action written as bite-size shocks (”An arm snaked around her neck!”), Dreams is no snooze. But even as it explores technological advancements, no intellectual insight puts a damper on the intended fun.