A couple discover they have a rare-genetic condition that makes them allergic to each other and must decide between facing the hazardous pain of being together or suffering the agony of being apart. A couple discover they have a rare-genetic condition that makes them allergic to each other and must decide between facing the hazardous pain of being together or suffering the agony of being apart. A couple discover they have a rare-genetic condition that makes them allergic to each other and must decide between facing the hazardous pain of being together or suffering the agony of being apart. A couple discover they have a rare-genetic condition that makes them allergic to each other and must decide between facing the hazardous pain of being together or suffering the agony of being apart.