By Samantha Highfill
February 13, 2018 at 01:00 PM EST

This isn’t your typical mermaid story.

EW can exclusively reveal a new promo for Freeform’s upcoming series Siren, which stars Eline Powell as a mermaid whose arrival in a small fishing town changes everything — and not necessarily in a good way. Unlike many mermaids we’ve seen in pop culture, this one has an appetite for violence. (Perhaps we should consider the show’s title, Siren, before expecting this mermaid to show up with a crab as her sidekick.)

In the new promo, you can see Ryn, the aforementioned mermaid, charm her way through the town and seemingly seduce her victims before killing them. Meanwhile, the town folk are left trying to figure out exactly what she is and what she wants. The series also stars Alex Roe, Rena Owen, Ian Verdun, and Fola Evans-Akingbola.

The two-hour premiere of Siren will air Thursday, March 29, beginning at 8 p.m. on Freeform.