When Holden first gets the idea of flirting with his friend’s younger sister, he should remind himself of the main rule right away: it’s a taboo. First, there are those unspoken rules. Second, at some point he promised to look after her—and he’s clearly not the kind of person she needs: a hardened ladies’ man, plus a musician with vague prospects. Lala is completely different—smart, kind, sensitive, a promising scientist, and it’s no wonder she already has a fiancé. So no extra thoughts, and certainly no actions.
But everything changes when Lala is offered a research grant in New York. For a few months they become neighbors in the same apartment building—too close for keeping distance to be easy. Holden tries his best to follow the rules, but day by day he starts to catch something in her words and looks—something that makes his blood boil. Is it just ordinary attraction, or a feeling that can’t be dismissed as an accident anymore? And how will their story end if they decide to cross the line?