Vera (2011)

S1E1 Hidden Depths

When two young individuals are discovered dead in identical circumstances—immersed in water and adorned with flowers—DCI Vera Stanhope realizes she must apprehend the killer before another tragedy occurs. With the help of her devoted team, particularly her reliable partner Sgt Joe Ashworth, she delves into the tangled and troubled connections within a circle of bird-watching enthusiasts. As trust among the friends shifts to treachery, Vera uncovers that a minor act of teenage extortion and a secret romance may have pushed someone to commit murder.