"Oracle" introduces a fascinating sub-plot involving Oxford scientists researching or ESP. Morse’s investigation leads him to Dr. Benford and a volunteer named Jenny Tate, who claims to "see" murders in her mind. This flirtation with the paranormal provides a haunting backdrop to the traditional detective work, suggesting that some truths may lie beyond conventional evidence. Key Highlights and Trivia

The episode opens far from the familiar spires of Oxford. Endeavour Morse is on holiday in Venice, seeking a respite that quickly transforms into a classic Morse-esque romantic entanglement. At an opera, he meets the mysterious and beautiful , with whom he begins a passionate but fleeting affair. This encounter is underscores by the opera La Sposa Del Demonio , an original work composed specifically for the series by Matthew Slater, echoing the show's long-standing tradition of blending high culture with looming tragedy. The Oxford Towpath Mystery

Morse meets an old Oxford classmate, Ludo, who aids him after a pickpocketing incident. In a classic twist, Ludo is eventually revealed to be Violetta’s husband, setting the stage for a season-long moral and personal conflict.

"Oracle" is more than just a season premiere; it is a masterful setup for a "nerve-jangling" series of events that would eventually lead to the show's conclusion in 2023. It captures Morse at his most vulnerable and brilliant, caught between the beauty of Venetian canals and the cold, dark secrets of Oxford's towpaths.

Back in Oxford, the atmosphere is considerably bleaker. While Morse is away, DI Fred Thursday investigates the brutal murder of a barmaid, Molly Andrews, found on a New Year’s morning towpath. The case becomes a point of contention: Thursday is convinced of the guilt of her boyfriend, Carl Sturgis, despite a seemingly solid alibi. When Chief Superintendent Bright asks Morse to take a second look months later, it creates a palpable "strain" in the relationship between the two partners, signaling the beginning of a deeper rift. Science and the Unseen

This marks the first series where Sara Vickers (Joan Thursday) does not appear, as the actress was on maternity leave during filming.

The episode features a nod to real-world history by portraying the first-ever Women's Liberation Movement conference at Ruskin College.

A New Decade of Shadows: Unpacking "Oracle" (2020) As the calendar turned to 1970, the beloved British detective drama Endeavour ushered in its seventh series with the episode , first aired in early 2020. This installment serves as a pivotal bridge between the swinging sixties and the grittier dawn of a new decade, weaving together themes of romantic obsession, scientific curiosity, and the growing professional friction that would define the series' final years. A Venetian Prelude