‘The Bay’ has been recommissioned for a second series.
The ITV drama will begin filming later this year and while casting details are to be announced nearer the time, Morven Christie looks set to return as DS Lisa Armstrong.
ITV’s head of drama Polly Hill said: "I am delighted with the audience response to ‘The Bay’.
"It’s very real and beautifully made by everyone involved, and as a result it held an audience of seven million across six weeks.
"I think that audience will enjoy seeing where Daragh takes Lisa and the team, when they return with a new case for series two next year."
The Morecambe-based drama, which was written by Daragh Carville, came to a thrilling conclusion last month.
Executive producer Catherine Oldfield said: "We are so thrilled that The Bay found such a large audience and that the fantastic world and characters brought to life by Daragh Carville will be returning to ITV.
"It was an incredible production, shot in a beautiful location and thanks to ITV’s belief in the story we wanted to tell, we get to do it all over again."
Other cast members included Daniel Ryan as DI Tony Manning, and Chanel Cresswell as Jess Meredith.
Following the finale, Chanel admitted it had been "a joy" but also "slightly difficult at times" to play Jess, whose son Dylan Meredith (Noah Valentine) was found dead.
She wrote on Instagram: "It’s been a pleasure and a joy to work with an amazing bunch of ferociously talented people ! Tonight is a Tv wrap on Jess a pleasure to play and I won’t lie slightly difficult at times but boy was it worth the ride! All the love and wonderful messages I have had … I thank you massively! Lots and Lots of love to you all (sic)"