Someone is stealing all the money in Saint Canard by erasing all the ink on the money and leaving it nothing but worthless paper to write on. Darkwing volunteers to help solve the mystery but SHUSH Agent Grizlicoff doesn't trust him. Darkwing discovers that the thief is Amonia Pine, who used be a cleaing maid until some dangerous chemicals caused her to be obsessed with cleaning. (thetvdb.com)