Two lonely souls from a foreign land intersected because they took the No. 18 Subway together. After their first fatal encounter, they got to know each other better because they took the same train every morning and rented the same town. Their status as strangers in a foreign land made the two know each other and fall in love. Both of them have families, one has an unfortunate marriage but has a lovely daughter, and the other has a harmonious family. Although both parties once loved each other deeply, reason overcame temptation, and in the end they did not forget their responsibilities as wives and mothers. Although they were reluctant to give up, they moved towards two different parallel lines of love.
Purpose: Returning to the family is a social responsibility, and we must know how to let go in time