Louisa Laurent (Silvia Abascal), a real estate tax expert on vacation, received a call from her boss, Educardo, asking her to hurry to the Wadmar residence in Montnegro. The mansion was built in the Victorian period and has a long history. As early as a month ago, Educardo sent his subordinate Oresia to evaluate the assets and prepare for the auction of the mansion. However, there was no word from Olisia since, and when the auction date was advanced, he had to find Louisa in a hurry. After some bargaining, Louisa was ordered in the face of danger. When she came to the dilapidated mansion, she inspected the interior and saw a highly decomposing body. Four days later, Louisa was also declared missing. Her boss Maximilian (Eusebio Poncela) has no choice but to find private detective Nicholas (Eusebio Poncela) to investigate the whereabouts of two employees. In the course of his investigation, Nicholas slowly uncovered the palpitating and little-known past of the Wadmar mansion.