A Mermaid-like Wesen Attacks Underwater | Grimm

Two couples are having fun in a river when two mermaid-like creatures (Naiads) attack the men, grabbing their legs and pulling them underwater.

From Grimm Season 3 Episode 4 'One Night Stand' - Nick and Hank investigate a drowning death where the victim has mysterious marks on their ankles.

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"There once was a man who lived a life so strange, it had to be true. Only he could see what no one else can—the darkness inside, the real monster within, and he's the one who must stop them. This is his calling. This is his duty. This is the life of a Grimm."

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