‘Sister of Amy Miller,’ Freya replies. ‘Olivia Cross.’

‘Amy Miller? As in the Jonathan Miller case?’ Freya nods, and they both climb into her car. ‘I heard about that one. Before my time, but everyone was talking about it.’ Josh continues, ‘The psycho wife who died?’

‘That’s her,’ Freya says, feeling her body grow hot.

‘Didn’t the sister end up with all the money?’

‘Yeah. Next of kin, so all the life insurance and inheritance went to her.’ Freya feels a trickle of sweat run down her spine, and stares resolutely at the road as she drives.

‘So who’s the father?’

‘I don’t know.’

‘She seems to know Robin Butler well.’

‘Hmm…’ Freya says.

Josh senses her reluctance and moves on to what he found out about the freezer first thing that morning, even before Freya was awake. With some determination, he’d managed to get hold of the old lady’s daughter, who explained that they gave it away six months ago on Gumtree. Two blokes, no idea about names. She gave Josh a mobile phone number but it wasn’t registered, and the account on Gumtree is now closed down.

Freya’s glad of his change of subject, her mind full of Olivia and this surprise baby. The maths isn’t good. So Olivia got pregnant around the time they were investigating Jonathan’s murder. When Robin was close to Olivia. How close? she wonders. She knows there was a lot Robin didn’t tell her around that time. Get-togethers, just Olivia and Robin, one of which culminated in him getting beaten up outside her strip club. A rumour of a complaint, that Olivia had stayed the night at Robin’s. But what had happened? Not that, surely?

‘So we’re nowhere,’ Josh finishes.

‘CCTV?’ Freya asks, keen to keep him talking.

‘Mina is on it now.’

Back in the office, Mina is slumped in front of her screen. She has a half-empty mug of coffee in one hand, which Josh swaps for a full one without a word.

‘Anything?’ he asks.

‘Nah.’

‘Anything back from the lab?’

‘Nah.’

‘You called them?’

Mina looks up at him. ‘What do you think?’

Josh slumps in front of his own computer.

‘So where are we?’ he asks the two of them.

Freya ticks it off on her fingers. ‘We have a dead body in a freezer, with a time of death in the early hours of Wednesday morning, and an uncertain cause of death. We have kids playing in the bus shelter’ – Mina looks up with interest – ‘who were apparently never there because they were playing on their Xbox,’ she adds for her benefit. Freya continues: ‘We have the freezer and clothing down at the lab, an appliance we can’t trace—’

‘A shitload of CCTV with nothing on it,’ Mina finishes for her.

‘And a body with no ID,’ Josh says. ‘We think he was homeless, right?’

‘That’s our theory.’