Locked in a cycle of overeating that threatens both their health and their relationships, two people profess their love before being separated to fight their diet demons. With the help of nutritionists and psychologists, they undergo a transformation not just in their eating habits but also in how they view their world. The participants' lifestyles are overhauled to help them lose weight and change their attitude toward their well-being, their interests and their relationships. Can bad habits be broken through this sort of dramatic, disruptive intervention? And will the lovers be able to change their behaviour and eventually give their partners the gift of a lifetime?