Broadchurch: who are the suspects?

We knew the taxi driver was a wrong-un from the moment we saw him, eyeing Miller and Hardy up with a sneer from his cab in episode one. But episode two brought us news that he and Trish once went on an "accidental" date – although it sounds like the young chap was the keener of the two. "I had to turn him down," Trish told the cops, looking a tad embarrassed.

So far, so shifty... and then came the revelation that suspicious Lucas was operating off-radar for much of the evening of Cath's 50th. According to the cabbie, his radio was on the blink, but it was functioning "clear as a bell" when he was interviewed by Miller and Hardy a few days later.

Episode three saw him caught lying to the police, before claiming he'd fabricated his story because he'd picked up a fare he shouldn't have and wanted to cover his tracks. But we'd bet good money he's still telling fibs.

And then there's that drawer of trophies. Are they reminders of his victims? And why does he have Trish's keys and the sets of two others? Now his wife has clapped eyes on them, will Lucas's collection come under scrutiny from the cops? Or will he find a means of silencing her?

Next page: suspect number six