Photo Flash: GRIMM's 'Kiss of the Muse,' Airing 5/7

On GRIMM's upcoming episode, titled "Kiss of the Muse," Nick (David Giuntoli) discovers a muse-like Wesen (guest star Nora Zehetner, "Heroes") with the ability to influence those she gets close to - some with positive results, others with terrifying ones. Nick must find a way to get close without losing himself in the process. Juliette (Bitsie Tulloch) arranges a dinner date with Nick in the hopes of clearing the air, but their plans go awry as the case intensifies. Meanwhile, Rosalee (Bree Turner) takes her first visit to Aunt Marie's trailer. Russell Hornsby, Silas Weir Mitchell, Sasha Roiz and Reggie Lee also star.

"Kiss of the Muse" airs May 7 at 10:00 p.m. on NBC. Check out a first look below!