In typical grim (or is that Grimm?) fashion, NBC’s Grimm (Fridays, 9/8C) goes full spook this week, adapting the Latin legend of La Llorona – a weeping, female ghost that kidnaps and drowns children – for its Halloween episode. Check out these seven videos (yes, there are six more following the jump) as the Grimm cast and guest star Kate Del Castillo talk about the episode.