Heather arrives home to find Rob and Cassie sitting in the lounge, files laid out across the coffee table.

"Oh, hi," says Cassie. "You must be Heather."

"This is Detective Maddox," Rob introduces his colleague to his landlady. "We're just working."

"Cassie," Cassie introduces herself cheerfully.

Heather nods. "What are you working on?"

"You know I can't talk about my cases," says Rob.

"Maybe don't have the evidence all over my living room then," she snaps, looking at a grisly photo.

"Sorry," Cassie covers the photo with a file. "We're nearly finished."

"No, it's okay," Heather concedes. "I'll be in my room."

"Nice to meet you," Cassie calls after her.

"You too." Heather glares at Rob, then goes to her room and shuts the door hard.

"She seemed pissed off with you," Cassie comments. Rob shrugs evasively and she gets it. "Oh, you didn't. With your landlady?"

"She had no complaints," he defends himself.

"I'm guessing you didn't pledge your undying love afterwards." She rolls her eyes.

"How was I to know she was a bunny boiler?"

"That's what men always say about women they dump. What if she chucks you out?"

"Then I'll arrest her on some trumped up charge."

"Funny." Cassie gathers up the files. "I'd better leave you to sort your mess out."

"Stay for a drink," he pleads. "She might kill me in my sleep."

"No more than you deserve." She slings her bag over her shoulder. "See you."

After she's gone, Rob ends up drinking alone until Heather comes out to the kitchen.

"She's very pretty," she comments, switching the kettle on.

"I hadn't noticed."

"You haven't sweet-talked her into bed yet, then?"

"It's on my to-do list."

"She's probably too smart to fall for that." Heather comes to stand in front of the sofa.

"Don't put yourself down." He reaches for her waist, pulling her onto his lap.

"You're such an arsehole," she says, but she closes her eyes.