A woman shot dead on her doorstep. A killer who disappears into the fog. News reporter Penny doesn't believe in spirits, so she's unimpressed with the young medium who claims to communicate with the dead. Is it harmless entertainment or something more sinister? When the spiritualist's performance is interrupted by a protestor, Penny finds an ally. Two days later, her new friend is dead. As Penny investigates, the mystery deepens. Could family money lie behind the murder? Or an affair? Soon, Penny suspects the spiritualist isn't who she claims to be. There's another puzzle to solve and increasing conflict with her police inspector husband. A second death puts a twist on the case, but Penny's running out of time. Then comes news which changes her life forever . . .