Maggie Elliott isn't particularly close to her half sister -- Celia Sloan's wealthy life isn't quite Maggie's style. But when Celia dies as a result of a bizarre incident revolving a steep hill and a cable car. Maggie is drawn into the Sloan mansion -- and into the Sloans' troubles. The whole family -- Celia's daughter Lindy, her hard-drinking son Mark, and her psychiatrist husband Henry -- is distraught over the accident. And the fact that the police are calling it murder and questioning them about motives and alibis isn't helping any. Maggie's going to need all the help she can get to figure out what's really going on. Help in the form of former cop Richard Patrick O'Reagan -- who just happened to witness Celia's death by cable car....