Ep 16. Heartbreaker

Nick is back in Portland and is trying to deal with the loss of his Grimm powers. He still wants to help out with the Wesen cases, as he has done in the past, but he's not sure how he can go about it without his special abilities. Meanwhile, he and Juliette are still trying to come to terms with Juliette's new Hexenbiest powers, which have caused a rift between them.

In this episode, Nick and Hank are investigating a case where women are turning up dead with their hearts missing. They discover that the killer is a Wesen known as Klaustreich, who is using his powers to seduce women and steal their hearts. Meanwhile, Juliette is struggling to control her Hexenbiest powers, which seem to be growing stronger with each passing day. She turns to Rosalee for help, but Rosalee is hesitant to get involved, as she fears what Juliette might do if she loses control.

As Nick and Hank continue to investigate the case, they begin to suspect that the Klaustreich may be someone they know. They start to search for clues and eventually discover that the killer is a man named Larry. Larry has been using his Wesen powers to seduce and kill women for years, and he is becoming more and more dangerous as he grows older.

Meanwhile, Juliette's Hexenbiest powers are starting to spiral out of control. She starts to experience intense emotions and begins to lash out at those around her. She also starts to experience visions of a mysterious woman who seems to be trying to communicate with her. Juliette is not sure what to do, and she starts to wonder if she will ever be able to control her powers.

As the investigation heats up, Nick and Hank discover that Larry has a partner, a Fuchsbau named Loni. Loni is helping Larry by providing him with the victims he needs to use his powers. Nick and Hank track down Loni and confront her, but she manages to escape. They eventually catch up to her and bring her in for questioning, but she refuses to talk.

Meanwhile, Juliette's Hexenbiest powers continue to grow stronger, and she begins to experience more and more intense emotions. She starts to feel like she is losing control and decides to seek out the mysterious woman from her visions. She eventually finds the woman, who reveals that she is a powerful Hexenbiest who can help Juliette control her powers. Juliette agrees to the woman's offer of help, but she is not sure if it is the right decision.

In the end, Nick and Hank manage to capture Larry and Loni and bring them to justice. Juliette continues to struggle with her Hexenbiest powers, but she feels like she is making progress. She knows that she has a long way to go, but she is determined to learn how to control her powers and live a normal life again.