When real estate mogul Gavin Ransom announces his plan to cover California's northern coast with scores of mini-mansions, his environmentalist sister, Olive, launches a protest to stop him. But there's trouble ahead when Gavin begins falling for the pretty folk singer who's helping Olive's cause.

Shortly after David Abbott moves into his new San Francisco digs, he has an unwelcome visitor on his hands: winsome Elizabeth Martinson, who asserts that the apartment is hers -- and promptly vanishes. When she starts appearing and disappearing at will, David thinks she's a ghost, while Elizabeth is convinced she's alive.