Chetan (17) bothered by pimples and an anxious mother, dreams about making a time machine one day. He falls in love with an imaginative new girl in his class, Mishthi, who becomes the centre point of his existence. Mishthi whose parents are divorced, makes him promise that if they are ever together he can never leave her. Their life is perfect. However, one day, Chetan's 50 year old version appears suddenly in his room. The older Chetan has invented the time machine in his time and has returned to eat home food and divest his younger version of his romantic notions about life, leaving young Chetan confused and bitter-sweet about his future.