The detectives are asked to take care of a cursed medal that brings misfortune upon its owner. Will they be able to survive the series of misfortune that falls upon them?
Where there's treasure, 
Phantom Thief Rusty Nail appears!
Wo es einen Schatz gibt, ist
Meisterdieb Rusty Nail nicht weit!
¡Donde haya algún tesoro,
Siempre que haya un tesoro,
Il y a un trésor ici…
Onde há tesouro, a Ladra Fantasma
Rusty Nail é chamada!