At the beginning of the film, the calendar is marked as Day 14. In Taiwan and some Asian countries, the numerical digit 4 is considered a bad luck number associated with death due to the number '4' and 'death' sounding similar in their native languages. The fear of the number 4, known as tetraphobia, is taken seriously in some Asian countries, where numbers containing 4 are sometimes omitted in elevators, floor levels, and addresses on hotels, homes, hospitals, and other buildings and properties. The number 14 is considered even unluckier than the individual 4 in Chinese languages. In Mandarin, the number 14 sounds like 'to want to die.'
