Streaming on ITVX (UK) and BritBox (International).
The episode opens with the aftermath of her fateful decision to hide her suspect’s suicide note. This is not a plot hole; it is a character flaw. Jenn is trying to protect her family from the violent father (Nick Mooney), but in doing so, she has planted a landmine under her own career.
If you are writing a crime script or simply a fan of the genre, study this episode. Notice how nothing "happens" in terms of car chases or shootouts. Yet everything changes.