The Door Into Summer

Electronics engineer Dan Davis has finally made the invention of a lifetime: a household robot with extraordinary abilities, destined to dramatically change the landscape of everyday routine. Then, Dan was tricked by an unscrupulous greedy business partner and a greedier fiancee into spending thirty years in suspended animation, the long sleep, just when he was on the verge of a success beyond his wildest dreams.

They never imagine that the future time in which Dan, a modern-day and future-time, Rip Van Winkle, will awaken has mastered time travel, giving him a way to get back to them, and at them, and get his revenge!.