Louis Tomlinson knows lots of things. He knows how many footsteps there are between the bus stop and home. He knows he likes working in The Buttered Bun tea shop and he knows he might not love his girlfriend Eleanor. What Lou doesn't know is he's about to lose his job or that knowing what's coming is what keeps him sane. Harry Styles knows his motorcycle accident took away his desire to live. He knows everything feels very small and rather joyless now and he knows exactly how he's going to put a stop to that. What Harry doesn't know is that Lou is about to burst into his world in a riot of color. And neither of them knows they're going to change each other for all time.