Asperger-patient Anthony Cahill can't stay in his trusted specialized seaside home Morningwood when his devoted father dies suddenly, leaving no trust fund, so his elder sister Lauren Cahill, who left home years ago to become an independent order photographer in Boston with little success, must take him in her small apartment. While smart, honest Tony soon endears himself to everyone, especially her neighbor-admirer, barista Stephan Great, who helps providing structured daily routine. Her ambition to gain notoriety in a competition for museum curator Jacob Abrahams, whose PA Yong Lim sabotages her. Things escalate when each sibling believes the other wrecked his life, but the truth proves more complicated.