A red scarf. A roller coaster. A tidal wave of blood.

Isabel Wright spends her days at the Belvedere Center for Sleep Research analyzing the dreams of others. Dr. Martin Belvedere, a pioneer in the field, recognized her unique talent for what he calls Level Five lucid dreaming - and rescued her from a dead-end job at the psychic dreamer hotline. It's satisfying, lucrative work, but it can be emotionally draining at times. Especially when one of her anonymous subjects, known only as Client Number Two, captures her imagination through his compelling dream narratives. Secretly, she thinks of him as "dream man."

Client Number Two's real name is Ellis Cutler. A loner who learned long ago not to let anyone get too close, he works for a highly classified government agency with an interest in the potential value of lucid dreaming. And he has just been ordered by his boss to make contact with Isabel, who's been fired after the sudden death of Dr. Belvedere. Heading to California, he pushes his own fantasies out of his mind, determined to maintain a professional relationship with the woman who reads his dreams, the mysterious figure he has come to think of as "Tango Dancer."

But when they meet in the flesh, the dream becomes real enough to touch. And a waking nightmare begins - when a suspicious hit-and-run leads them into a perilous web of passion, betrayal and murder, and forces them to walk the razor-thin line between dreams and reality. . . .