Tea Time (2015)

An old lady lives sharing her home with a home robot to assist her in the daily life. After to see a commercial in TV of a new model of a home robot, learning about the bad condition of her own, the lady buys the new model and exiles the old, who sad walks to arrive an abandoned caravan. But problems happen when the new robot, after giving a energy drink to the lady to restore her youth, forces her to running in a treadmill continuously. Hearing her scream asking help, old home robot returns to the house to face to the rival, trying to save his loving mistress.