The number of deaths in the six episodes of Prime Video’s thriller Lazarus hints that the ending will be completely unexpected. The thriller finds its starting point with the death of the psychiatrist Dr. Jonathan Lazarus (known as Dr. L) and his son, also a psychiatrist, Joel (known as Laz), returns home as he struggles to deal with his father's death.
The unbelievable number of twists and turns throughout the show, in parallel with a mysterious supernatural presence that allows Laz to communicate with some familiar previous clients of his father, makes for a thrilling watch. ‘Previous’ refers to clients who died, so he finds himself effectively talking to ghosts in his father’s office.
Keep reading to find out how the Prime Video show upped the stakes even more by the end of the sixth episode of Lazarus.
Did Dr. L really kill himself in Lazarus? Ending explained

The Prime Video show is hinged on Dr. L's sudden and mysterious death, and as Laz finds himself struggling after his father's death, we learn that Dr. L's death appeared to be a suicide. For most of the series, it looks like this might be far from the truth, and someone actually killed him.
However, the season finale reveals that Dr. L did actually kill himself, but the reason behind his decision is more complicated than the audience might expect. We find out that Dr. L had killed himself because he was trying to hide a sinister truth about himself from his son and the world at large. So, when Kate Ashfield's Brown pressured him with the sword of his truth hanging over his head, he chose to kill himself.
Laz finds out Dr. L's truth that was being hidden from him

Despite Dr. L’s attempts to hide the truth from his son, including taking his own life, Laz eventually finds out the life-changing truth that his father was hiding. It is revealed that the person pressuring Dr. L was Brown, the managing detective on several of Dr. L's cases where his patients died, such as Cassandra Rhodes, Imogen Carswood, and Harry Nash.
We find out that Brown knew the reality behind the death of these clients on Lazarus. The reality was that Dr. L had woven a conspicuous web of lies and had actually killed all of these clients, and to hide his crime, he had supplied fake evidence to Brown and the police force, leading to Arlo Jones and Father Franklin Barnway being arrested for Dr. L's crimes.
However, having discovered the reality, Brown confronted him, and he ended up killing himself to prevent his son from ever finding out the truth. Ironically, Laz does end up finding out everything.
How did Laz find out about Dr. L's crimes in Lazarus?

The final moments of Lazarus reveal the truth about the supernatural setting, which added a lot of mystery to the episodes. The fact that Laz could communicate with his father's dead clients in his lab was one of the most terrifying yet exciting aspects of the show. It is later revealed that he was listening to his father's tape recordings of his patients and was somehow conjuring them to life in his head, leading us to believe that the dead had come to life in the office.
This single reveal makes the entire six-episode narration thoroughly unreliable. If it was all in Laz’s head, what else might have been colored by his perspective?
Like father, like grandson? Lazarus flips the table at the end

From Laz's twin sister's death 25 years ago to Laz's father's death, which kick-started Lazarus, all of the deaths have been solved by the end of the season, but the one death that remained to be cleared was the present-day death of Dr. L's secretary, Margot, who had been killed after Dr. L's death.
Even though Laz had suffered after his father's death, he had never really shared a pure bond with his father and was worried that he'd turn out to be like him. He should have worried even more, because as it turns out, he might be different than his serial killer father, but his son Aidan, Dr. L's grandson, was walking on the same path.
In the most shocking development, Lazarus reveals that while Laz had been accusing everyone else of murders, Margot and Laura had been killed by his own son, Aidan, who'd visited his grandfather for a few sessions.
Even though Lazarus wraps up almost all of the plot points satisfactorily while managing to surprise us by the end of the sixth episode, there is still the matter of Aidan being a serial killer, which can be explored if the show is indeed renewed for another season (which it hasn't at the time of writing).
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