Bob and Fran have invested all their hopes in the next generation, working hard to give their children the opportunities they never had. Whilst Bob and Fran hope to sit back and smell the roses, their adult children are all at a point of crisis and struggle to define themselves beyond their parents' love and expectations. What do generations owe each other and why do we often hurt those we love the most? THING I KNOW TO BE TRUE is about love in its many forms; love that can be comforting and supportive, or suffocating and destructive. And is it possible to love too much?