First life, second life

Lena's childhood village heard the legends about ghosts in the ruined princely estate. They haunted her inhabitants, but even when the estate was empty and dilapidated, ghosts she did not leave. Everybody shunned place, and Lena saw in him the beauty and dreamed of the restoration of the estate. Acquainted with a rich man, she used all her charms to inspire him to this...
And she did it! The son of the oligarch capital agreed to invest millions in renovations. He brought with him an architect and two weirdos who called themselves the Ghostbusters. They all remained in the estate on the night - one for fun, anyone hoping to see ghosts. When I woke up, it turned out that one of them is dead...