On the winter solstice, Isabel Whitney hastily marries Felix Sterling—the disabled second son of the Sterling family. But on their wedding night, Felix shocks her: he plans to die in a year. Deciding to make the most of it, Isabel treats it as a fling—just for fun, maybe even to have a beautiful child. Yet as days pass, her warmth seeps into Felix's dark world. She becomes his light, his salvation. Through sweet, simple moments, Felix falls for Isabel—truly, deeply. Love works its miracle. Having confirmed their love for each other, the two join hands and walk toward a happy future together.