THE STRANGLERS OF BOMBAY

Captain Harry Lewis of the British East India Company is investigating why over 2,000 natives are missing, but encounters a deaf ear from his superior, Colonel Henderson, who is more concerned with the local merchants' caravans which are disappearing without a trace. To appease them, Henderson agrees to appoint a man to investigate, and Lewis believes it will be him. However, he is disappointed when Henderson gives the job to the newly arrived, oblivious Captain Connaught-Smith, the son of an old friend of Henderson.

Lewis believes an organised gang is murdering both the men and animals of the caravans and then burying the bodies, and suspects that the culprits have secret informants among the merchants of the city. He presents Connaught-Smith with his evidence and his theories, but is dismissed. He is also later caught by the Thugees and sentenced to die by the bite of a cobra, but is rescued by a pet mongoose, forcing the cult's high priest to release him. However, Connaught-Smith remains antagonistic and derisive towards Lewis, who eventually resigns his commission in frustration to investigate on his own.

Ram Das, Lewis's houseboy, believes he has seen his brother, Gopali, who disappeared some years ago, and receives permission to search for him. Lewis later learns that Ram Das has been killed by the Thugs, when his severed hand is tossed through the window of his bungalow. When searching for Gopali Das, the Thugs captured Ram Das and then compelled Gopali, a new initiate of the cult, to kill his brother. Meanwhile, the merchants decide to band together and create a super-caravan whose size, they believe, will discourage the bandits. The hidebound Captain Connaught-Smith leads the caravan and foolishly allows the stranglers (in the guise of travellers) to join them. That night, the Thugs strike with their usual success, and all caravan members, Connaught-Smith included, are slain and buried.

Lewis and Lt. Silver, a cult member, investigate the caravan's disappearance. Lewis sees the scar that marks Silver as a Thuggee follower of Kali and shoots him in self-defence. Lewis then discovers the buried bodies and returns to the cult's secret temple, where he is caught and set to die on a burning pyre. Gopali Das, however, now haunted by his brother's death at his own hands, frees Lewis, who casts the high priest onto the pyre instead, and the two men escape in the ensuing tumult. Lewis and Gopali race to meet Henderson, who is dining with Patel Shari, the merchants' local representative and secretly a member and informer of the Thugee cult. Gopali identifies Patel's chief servant as a Thug; Patel kills his follower to hold his tongue, but exposes himself with this action. Following this, Lewis's resignation is revoked, and he receives a promotion from Henderson for his help in exposing the Thuggee cult. The film ends with a narrative display detailing that the Thugee cult was subsequently wiped out by the British, and a quotation by Major General William Sleeman: "If we have done nothing else for India, we have done this one good thing."

Captain Lewis and Gopali Das expose the Thugee cult with the help of evidence against Patel Shari, leading to the cult's downfall. Lewis is reinstated and promoted after the cult is destroyed, and the film ends with a historical note on the eradication of the Thugees.

The ending serves as a resolution to both the central murder mystery and the colonial struggle for order. By unveiling the cult’s hidden network and surviving its deadly rituals, Lewis restores authority and justice, while the film’s closing narration ties the fictionalized events to actual historical outcomes. The arc underscores both the perils and moral ambiguities of colonial intervention, wrapping the action in a sober reflection on the eradication of the Thugees.