The German translation for this episode title is "Worker's Paradise".
Why would somebody do this to dad?
DC Muriel Yeardsley: Did the company have any trouble? You know, unpaid debts or disputes.
Charlene: Dad didn't say anything. Not to me. I'm sure you know, I was in rehab. I guess I'm a fuck-up next to someone like you, huh?
DC Muriel Yeardsley: We all fuck up. Believe...
No further mention is made of the fact that Lubica conspired to hide the body, surely Bill would have charged her with at the very least with interfering with a police investigation.