The main characters of the series are Vicky "Dev Kantawala", a brave and intelligent sixth standard boy and Vetaal "Vishal Malhotra", a friendly but foolish ghost whom only Vicky can see. Vicky released Vetaal accidentally after Vetaal had been hanging from a tree in a graveyard for 300 years and since then their fate has been tied together "much to their dismay" and they have to go along together everywhere followed by "Paddu", Vetaal's living book of magic.