6:00 p.m., Westbank, 47th floor. Danny Kwon, a shy illustrator with 37 cue cards of conversation topics, has texted Margot for three weeks and promised to meet her at sunset: no phones, a red rose each, the middle of the Concord Arch. Then a brownout kills his phone, his smart lock seals him in, and out the window the Arch rises into a giant glowing heart. A deadpan romantic comedy in a city built so nobody ever has to stop.