While in Paris during Fashion Week, the gang meet up with Velma's old classmate in Criminal Psychology classes, supermodel Gigi Hadid. They are on the case of a gargoyle that is attacking Hadid's fashion show!

The Gang are called to the Dergfall Boldman Department Store to solve the mystery of an Elevator Operator Ghost, who is terrorizing its customers. While there they meet Tim Gunn, but which of our heroes will Gunn find lacking in the fashion stakes?