A nighttime security guard is intrigued by the office cleaner who works in the building opposite him every night. Shy and not a native English speaker, he finds a unique way to catch her attention and communicate with her. But when his employer catches him on CCTV and his job is on the line, he must find a way to continue his courtship of the unassuming cleaner -- which might mean taking the next step and meeting up with her in person.
