MINI: Expect the traveler on a stormy day

A mysterious antique dealer has been killed, and the main treasure of his collection - the smiling Buddha - has disappeared. An ancient key was found at the crime scene, for which there is no lock. This is just the beginning of a chain of mysterious and terrifying events, new murders.
Who is to blame for what is happening? And how is this connected to the Buddha figure?
While trying to unravel the threads of the crime, Tina and her friend Siur encounter inexplicable phenomena. Incomprehensibly, real events turn out to be intertwined with the life of ancient Egypt, medieval knights, and the fate of the fateful opera diva Eulalia Kadmina, whose portrait was kept by the old antique dealer.
How to keep from going insane in this nightmare and achieve the solution? Only those who believe and love can overcome all trials.