The book starts in 1970 with Dan Davis --- engineer and founder of Hired Girl, Inc., a growing company that makes household robots --- looking for his own door into summer. His former business partner, Miles Gentry, and his former fiancée, Belle Darkin, the company secretary, have conspired together to take over his business.
Dan was too trustful, perhaps too naive. He shouldn't have assigned company stock over to Belle as an engagement gift. He should have seen that Belle was lying when she said she liked his cat.
Things get nasty when Dan confronts Miles and Belle. They put Dan into the Long Sleep, ship him off to 2000 A.D., to get rid of him. Fortunately Dan mailed his Hired Girl stock to Ricky at Girl Scout camp.
Dan wakes up in the year 2000 and finds things not quite as expected. He searches for Miles, Belle, and Ricky. Then he discovers a way to make it so Belle and Miles don't get away with their schemes after all.