Original "Grey's Anatomy" cast member Sandra Oh is headed back to TV for what looks like another compelling drama series.

BBC America released a trailer Thursday for "Killing Eve," and it shows Oh as her latest character, an MI6 agent named Eve. The preview also introduces Villanelle (Jodie Comer), a psychopath who works as an assassin. The two are supposed to work together on a mission, but it seems to get pretty complicated. From what we've seen so far, their rapport is definitely interesting.

"I know you're a psychopath," Eve says in the trailer.

"You should never tell a psychopath they are a psychopath," Villanelle responds. "It upsets them."

The series is based on Luke Jennings's Villanelle novels, and Phoebe Waller-Bridge is the lead writer and showrunner. She also executive produces alongside Sally Woodward Gentle and Lee Morris. Colin Wratten and Sid Gentle Films produce, and Oh is an associate producer.

"Killing Eve" premieres Sunday, April 8 at 8 p.m. ET/PT on BBC America.