Overview
"Tarantella" is the 11th episode of the supernatural drama television series Grimm of season 1, which premiered on February 10, 2012, on NBC. The episode was written by co-executive producers Alan DiFiore and Dan E. Fesman, and was directed by Peter Werner.
Plot
Opening quote: "Instantly, the priestess changed into a monstrous goblin-spider and the warrior found himself caught fast in her web."
Ryan Showalter (Nicholas Gonzalez), a Fuchsbau, flirts with an attractive woman, Lena (Amy Acker), in an art gallery. He takes her to his apartment and attacks her when she decides to leave. She fights back, turning into a spider-like creature, and squirts a liquid from her mouth into his, killing him. She leaves with a finger missing. Nick (David Giuntoli) and Monroe (Silas Weir Mitchell) talk about Nick's decision to reveal to Juliette (Bitsie Tulloch) his identity as a Grimm (which he hasn't yet done). Nick is called in to join Hank (Russell Hornsby) to investigate Showalter's murder. They discover that the liquid that killed him was spider venom.
Later, Lena seduces a man in a restaurant and then kills him in the same way as Showalter. Nick visits the address of the people who have been stalking his house. He confronts the owner, John Oblinger (Kyle Vahan), an Eisbiber, and Bud (Danny Bruno), the man who was fixing his fridge. He intimidates them into agreeing to stop stalking him.
From Wikipedia (CC BY-SA 4.0).