Dalgliesh investigates a murder in the house of an influential Essex family; as he considers the prospect of a politically-motivated attack, a local man comes forward with an explosive allegation.

James receives a call from Mrs Pumphrey, who fears that her beloved Tricki Woo is dying; back at Skeldale, Tristan prepares to return to Edinburgh University, but Siegfried has other plans.

A part-time university student is found dead with electrical burns on the head, and two newly-arrived American psychology professors with a penchant for unusual experiments may be responsible.

Cousins Jolyon and Soames Forsyte are rival heirs to the family firm; a chain of events will threaten the stability of their lives and each is faced with a dilemma: do your duty or follow your heart.

Jolyon discovers that he has fathered illegitimate twins; Soames's father plots to use Jolyon's secret to discredit him whilst Soames, who is smitten by Irene, makes a hasty marriage proposal.

Jolyon insists on fulfilling his parental obligations as James tries to have him expelled from the company, and Soames promises Irene a move to Paris to support her dancing before the two get married.

Soames and Irene honeymoon in Paris while James is furious after Soames plans to set up a branch of Forsyte & Co. in Paris; Soames, who is horrified by a ballet, returns to London early.

Disaster strikes at Forsyte & Co. and causes clients' financial ruin, Soames tells Irene that James has a heart condition, and Jo refuses to cut Louisa out of his life and finds her a cottage instead.

Soames commissions Phil to build him an isolated country house ignoring Irene's suggestion they admit defeat in their marriage, Jolyon leaves the family for Louisa, and Ann has another grandson.

When serial killer Tommy Cummins offers to reveal the locations of his remaining victims, he insists on speaking only to Alberg, the detective who put him away.

After Cassandra presents Mayor Christie Holman with proof of corruption, Holman asks for 24 hours but then announces her resignation later; that night, she is attacked in her backyard.

A scrapyard owner's death draws Alberg into a case that collides with Cassandra and Holly's hunt for the elusive 'Creeper', a figure who leaves bouquets of enchanter's nightshade at local tragedies.

Eliza and Blake are drawn into a troubling case when a violent psychiatric patient escapes custody and leaves behind an unidentified body; Blake enlists Eliza's skills to unravel the case's secrets.

A scandal erupts when a high society couple's bitter divorce becomes public and their racehorse disappears from its stable; blackmail and murder accusations surface as each spouse blames the other.

Rupert Newsome faces murder charges for his wife Lucinda's death. Though he chooses to defend himself, Effie does her best to assist.

A series of brutal animal attacks in High Park terrifies Toronto residents.

A textile merchant is murdered and the obvious suspect is a man who is in love with the victim's wife, but Ricciardi is sceptical; meanwhile, Manfred plans to propose to Enrica.

A grand meeting in France forms the backdrop for a political clash of wits between Catherine and Wolsey - while back in London, rioting erupts.

Rupert Newsome faces murder charges for his wife Lucinda's death. Though he chooses to defend himself, Effie does her best to assist.

A series of brutal animal attacks in High Park terrifies Toronto residents.