"Romance Next Door’’ is the love story and also the story of friendship between 4 young people from different social classes and cultures, whose characters are opposite to each other. These 4 young people; Ateş Avcı, Ayşen Yılmaz, Demir Yılmaz and Yasemin Çetin will not only fall in love but also build a strong friendship based on a "cheerful lie”.
Yılmaz family lives in a small, 3-storey wooden house and own the mantı shop at downstairs. Demir, Ayşen, mother, father and grandmother live on the upper floor; and above them, their married sisters and brother-in-law live. The whole family uses the common living-room, bathroom and kitchen together. And there is a small attic at the top. Ayşen & Demir work at the family's mantı house together to keep the mantı shop afloat and contribute to the family economy.
Yasemin, left her hometown Balıkesir and came to Istanbul to study gastronomy at a public university.Growing up in a conservative family, Yasemin was sent to Istanbul under one condition: She will stay in a student dormitory and not go anywhere else than school and home. Since her father is sick and has medical expenses, she started to rent the dormitory room she stayed secretly from the dormitory administrators to the tourists for a short time with Airbnb. But when this situation arises, she is expelled from the dormitory. The only remedy is to find a small house that is suitable for her budget and pay for its rent by working.
Ateş is a 29-year-old rich, handsome, flirtatious, hooligan and stolid young man graduated from medical school. When he returned from America, his father commissioned him as the head of his companies and asked him to succeed, but instead of working hard Ateş continued to have an active night life til the early hours of days. The night before he made an agreement with a very important customer, he got involved in a night club fight and fell into a police station. Since he couldn't sign the contract, they lost a very important customer. And he left the family house after with a big quarrel with his father. He decides to rent a house with the last little money left.
Ateş and Yasemin, who look at the same apartment on the top floor, are very keen for that house. Since landlords Celal and Perihan wanted to give this attic to a married couple, Yasemin and Demir rent the attic by saying that they are newlywed. At this point, the paths of Demir, Ayşen, Ateş and Yasemin cross with this cheerful lie.