P.I. James Marley (Blue Heron) returns, this time to sort out what may or may not be the midlife crisis of his friend Russ Detweiller--who has abandoned his wife Joanna and his nearly completed computer work (worth millions) for the charms of former bar-girl Lily Lee and the island breezes of Montserrat. Does Lily love Russ, or is she part of a plot to keep him from working? Russ' program soon turns up on the West Coast; his assistant flees, is killed, and Marley scurries between Boston and the Caribbean. Meanwhile, Joanna comes on to him, Lily attracts him, Russ manipulates him into becoming a voyeur, and decidedly nasty oriental gentlemen (all connected to the luscious--lying? loyal?--Lily Lee) track him and that elusive computer program through forests, ravines, ocean sprays, beaches, and tax-write-off hotel sites--where salt water, Lily, and his own cunning save the day, though not Russ' marriage. A sexy, readable caper whose wispy premise is all but obscured by a fast pace, sexual tension, and Marley's staunch insistence on being fair to everybody. Thin at the center, then, but seductively thrilling around the edges.