Mr. Sandman

S2, E15: When a mysterious case of sudden blindness causes a woma's death, Nick (David Giuntoli) and Hank (Russell Hornsby) come across a disturbing Wesen that feeds off its victim's tears. Meanwhile, Adalind (Claire Coffee) contemplates the significance of her new situation, while Juliette (Bitsie Tulloch) continues to work with Rosalee (Bree Turner) in an effort to fix her memory.