The Beast Must Die

Seasons

2020

UK

6.3

TV-14

Following the death of her son in a hit and run, all Frances Cairnes wants is to hunt down and kill the man she believes is responsible. When she finally tracks him down, she tricks her way into his house and plots his murder from within.

Episode List

S1 • E1

Episode One

Frances Cairnes begins her search for the person who killed her six-year-old son in a hit and run. DI Strangeways arrives on the Isle of Wight, hoping for a fresh start after the death of his colleague.

S1 • E2

Episode Two

Having found the man she believes is responsible for the death of her son, Frances sets out to inveigle her way into his home as she plots her revenge.

S1 • E3

Episode Three

Staying on as a house guest, Frances must now work out how she's going to see through her murderous plan. While Strangeways continues his own investigation into the case, he begins to question what Frances' presence on the island may mean.

S1 • E4

Episode Four

As Frances becomes more embedded in the home, she makes progress with her plan-- she's found her weapon. Things heat up for DI Strangeways as he becomes ever more convinced of the possibility of foul play.

S1 • E5

Episode Five

Frances looks set to exact her revenge, when an unexpected turn of events threatens to derail her plans. Having uncovered further leads into Frances' unsolved case, DI Strangeways' strategy is blindsided by a surprising discovery.