Reviews for the episode were mixed-to-positive, generally earning around a or a B- from major outlets.
In this episode, Nick and Hank investigate a series of missing women, which leads them to Billy Capra, a seductive bed-and-breakfast owner. It is revealed that Billy is a (a goat-like Wesen) who uses pheromones to enthrall and kidnap women. The story draws inspiration from the folk tale Bluebeard , modernizing the concept of a predatory "honeymoon" destination. Critical Consensus [S1E4] Lonelyhearts
The episode explicitly addresses dark themes of kidnapping and assault, which sparked some discussion regarding how the show handles sensitive subjects. Grimm: Season 1 Episode 4: Lonelyhearts Review Reviews for the episode were mixed-to-positive