Patricia Arquette stars as Allison DuBois, whose skills as both a medium (i.e., she sees dead people) and a psychic (she can fairly accurately read minds and predict future events) make her an invaluable help to the Phoenix district attorney (Miguel Sandoval). But like most characters possessed of extraordinary powers, Allison isn't entirely comfortable in her own skin; plagued by awful nightmares (one of which kicks off every episode), she tends to become cranky and depressed, has a hint of a drinking problem, and regularly gets into it with her supportive but skeptical husband, Joe (Jake Weber). Those are the very characteristics that make the show consistently watchable. Although one might wish that she would find herself in real danger more often as she deals with everything from necrophiliac serial killers and air crashes to ghosts and child molesters, Caron focuses less on special effects and police procedure than on Allison's humanity, including her efforts to balance work and family responsibilities (sub-plots involving her young daughters are usually effective, if sometimes a bit too cute). It's the stories and the writing that make Medium work; Caron, in fact, is the show's real star. --Sam Graham