Andrej can see the souls of the dead, yet that doesn't bother him. What bothers him is the fraud, pretending to be a medium and now he has to learn to summon ghosts to prove the guy is a scammer.
In a world where magic is possible, but remains a myth, there are many people exploiting it. But if you take advantage of someone, things tend to get personal.
Ambition can be a strength, but one must be cautious not to take things too far. This story has too many elements with too much research needed that it's not possible to carry out at the moment.