Hit BBC1 drama The Missing is set to return for a second series, with the writers in talks with the BBC about a follow-up to the tense thriller.

Around 7.7 million people have been watching each episode of the compelling eight-part abduction drama, which stars James Nesbitt.

The big audience and critical acclaim means both the BBC and writers Jack and Harry Williams are keen to do another series. “It’s in negotiations, I think that’s fair to say,” said Jack.

“It’s definitely something we are keen to do and [the BBC] feel like they’re keen to do but to say any more may be too difficult.”

The story of Tony Hughes’ (played by Nesbitt) eight-year search for his five-year-old son who disappeared while the family were on holiday in France during the 2006 World Cup has gripped viewers since it began in October.

With its dual timelines, finely tuned acting from the French and English actors, and plot twists, The Missing has kept audiences guessing as to the outcome of the investigations into the abduction of Oliver Hughes.

The brothers said it was difficult to talk about whether any of the same characters would return in a second series without giving away the ending of this one.

Jack said: “All we can say is that this [series] will have closure to it … I don’t want someone at the BBC to kill me!” Harry said they hoped viewers would feel like they have been on a journey.

The Williams brothers wanted to make sure their drama leaves viewers satisfied with the ending. “We don’t want people to leave feeling frustrated,” said Jack. “You do feel a responsibility. I hope people do enjoy the ending. I think it’s very true to the very first hour that you see.”