‘And not a single thing more,’ Adrian said. He wanted to tell the DCI that Jarvis had switched off the camera and dropped the matter, but you didn’t win any points for grassing on your colleagues, especially without evidence.

‘I also looked into Leon Quick,’ Gary said. ‘He had money saved up, too – more than Glover – and I spoke to his former landlady in Exeter, who said he was a model tenant. Always paid the rent on time, kept the place spotless, even did some odd jobs around the building for her. When he told her he was leaving, she offered him a reduction in rent to stay on. He told her his mother was gravely ill and he needed to be home with her.’

‘Is his mother ill?’ DCI Kapoor asked.

‘Nope, she’s fine. He lied. The landlady said he didn’t even serve out his notice, but he paid until the end of the month of November. She said it was like he couldn’t get away from the place fast enough. We know his motive for leaving wasn’t financial, either, because he had some savings.’

‘I cornered Jimmy Chilton for five minutes while DS Miles was speaking to Corrigan and I think he might be softening,’ Imogen said. ‘He didn’t give me anything except the same old flannel, but there was something about his demeanour that was different. He confirmed Corrigan’s alibi, so they are both covered. But I don’t think we should cross him off as completely unhelpful just yet.’

‘So, to summarise,’ DCI Kapoor said. ‘We have no idea why Simon Glover was killed, but we think it was because he helped Mrs Corrigan, who possibly may have been trying to escape her husband. Then we have Leon Quick, who, to all intents and purposes, took his own life to stop us from learning the truth about something that happened at that bloody construction company – except we have no idea of what it was or who was involved. Then, of course, we have Angela Corrigan herself, who is less than cooperative. Are you following me so far?’

They all nodded and a few murmured yeses lingered in the air.

‘Our biggest problem is why. Saving Angela Corrigan is nice and all, but I just feel like there is more to it. Why do we think she went back to her husband?’

‘She could be scared of him, or she might feel the lifestyle she’s got used to isn’t worth jeopardising,’ Imogen said, raising her eyebrow.

‘She genuinely seemed scared of him when we spoke to her,’ Adrian said, annoyed at what Imogen was implying.

‘Unfortunately, your perception of the situation doesn’t really matter, Detective Miles. We need evidence. We need sworn testimony. Hunches don’t work in cases like this.’

‘Yes, Ma’am,’ Adrian said.