Yoo Bit Na, together with her mother Kim Ji Hye, are on their way to stay and attend her father Yoo In Ho's 57th birthday. While inside the car, they argue about her mother's inconsistent yearning for their share of the inheritance.
It was the first time that the family gathered again to celebrate Yoo In Ho's birthday. He was terminally ill after being diagnosed with stomach cancer. Yoo In Ho is a renowned artist and ill-tempered.Mrs. Park, the long time helper of In Ho and Ji Seol Young, is a theater director and the ex-wife of In Ho. They welcomed Bit Na as they arrived at the place, surprised by Ji Hye's four pieces of luggage.
Dok Geol is In Ho's stepbrother and his daughter, Dok Go Seon, arrived to join the celebration. They are also eager to hear more about the inheritance.
The house is big, and they went up to settle into their respective rooms. During dinner time, Yoo In Ho went out of his room to join his whole family. His nephew, Yoo Hae Joon, just arrived in time for the meal. He studies law with In Ho's financial support.
Dinner time wasn't a happy meal for everyone, as Yoo In Ho mentions each one's flaws while trying to flatter him.
On her second day, Bit Na almost got killed. A big pot fell and almost hit her head after she walked to the front door. Everyone gathered in the living room, trying to find the culprit among themselves.
Bit Na wanted to go back to Seoul because of the incident, but her mother persuaded her for the sake of her father's birthday.
Each one has his and her own motive and is trying to get to the secrets in that big house. They found out that each In Ho's painting sells a million each.
The big day arrives. Everyone is busy making their ways to surprise In Ho. A reporter came to interview the couple about their 25 years of living together. Mrs. Park is busy preparing the food while Kim Ji Hye is busy walking around the living room with a glass of wine.
The family gathered in the living room. Yoo In Ho is seated at the center while Yoo Hae Joon prepared a slideshow for his uncle. Dok Go Cheol gifted a scary-clown-jack pop-up in the box. Yoo In Ho was pissed and threw it away while Go Cheol fell to the floor.
He went to the room with Seol Jung, tailing him. She advised him to change and clean up to be ready for bed. Kim Ji Hye brought him his medicine.
The following morning, Mrs. Park requested Bit Na to wake up his father for a change bringing a glass of water as well. Bit Na greets her father while she enters the room and advises him to wake up. In Ho did not make a single move, she approached him and saw his lips turned to blue, as she touched his hand - it's cold as ice. It dawned on her what's going on and she shouted.
Kim Ji Hye heard the loud voice. She just woke up and ran to Yoo In Ho's room. The other members of the family came in. They were all shocked.
Seol Jung contacted the police as they all gathered in the living room. Detectives came in and checked the room and the whole house. They interviewed each one and tried to find any clue. Bit Na requested to have the body go into autopsy to check if Yoo In Ho was poisoned. The police agreed as Bit Na is the only family registered under In Ho.
On the day of Yoo In Ho's birthday, Kim Ji Hye was busy trying to get inside his room. She received a letter regarding the will and a key.Seol Jung informed the detectives about the safety box. As they checked, they found out that Kim Ji Hye and Dok Go Cheol had hand-painted marks, which means they accessed the box without him knowing, for the past days.
Ji Hye and Go Cheol were set up. They were the only two aside from Seol Jung who knew about the safety box. The detective brought them to the station.
Bit Na got shocked and searched for more evidence in her father's room. She found a letter hidden at the table. It is a hospital certificate that indicates Yoo In Ho recovered from cancer.
