Check out the new promo for next week’s episode of ‘The Flash,’ titled “The Sound And The Fury.”

Episode Description:

BROADWAY STAR ANDY MIENTUS GUEST STARS AS THE PIED PIPER — Dr. Wells’ (TomCavanagh) former protégée, Hartley Rathaway (guest star Andrew Mientus), returns to seek revenge on his mentor after being affected by the particle accelerator explosion.  Now able to manipulate sound waves,  the  brilliant  Rathaway is  a  dangerous threat  to  both Wells  and The Flash  (GrantGustin).  Meanwhile, Iris (Candice Patton) is thrilled when she’s hired by the Central City PictureNews as their newest cub reporter.  Unfortunately, her editor (guest star Tom Butler) pairs her with aveteran reporter,  Mason Bridge (guest star  Roger Howarth),  who wants nothing to do with her.Cisco (Carlos Valdes) recalls his first day on the job at S.T.A.R. Labs when he met Hartley andCaitlin (Danielle Panabaker).  Joe (Jesse  L. Martin) asks Eddie (Rick Cosnett) for a favor but askshim to keep it a secret from Barry.  John Showalter directed the episode written by Alison Schapker; Brooke Eikmier.