THE Serpent viewers have been left horrified after a monkey was poisoned and dropped dead in a distressing scenes.
The BBC One drama follows real life serial killer Charles Sobhraj and his reign of terror as he killed countless travellers in Thailand, Nepal and India during the 1970s, drugging them and often stealing their identities.
*Spoilers ahead for episode three of The Serpent*
The Serpent viewers have been left horrified after a monkey died after being poisoned in a distressing scene
In tonight’s episode, viewers saw Charles – under the guise of a man called Alain Gautier – befriend a French male backpacker called Dominique.
He gained his trust before drugging him and taking him back to his home where he was living with his girlfriend and accomplice Marie-Andrée Leclerc (Jenna Coleman).
She then took over issuing him a daily medicine drink to help his ‘sickness’, which in actual fact was making him worse and gradually lose weight.
As the story progressed, Dominique grew weaker and more dependent on the couple, but in one scene, he was home alone and making the ‘medicine’ to drink when the couple’s pet monkey Coco got their paws on it.
A character called Dominique didn’t know he was being poisoned by serial killer Charles Sobhraj and his girlfriend
However, Coco the monkey started to drink his lethal beverage after it was knocked over
The animal was then seen collapsing on the floor
Dominique found the animal dead, leaving viewers upset
Dominique tried to shoo the creature away, but suddenly had to turn and throw up, allowing the monkey to drink even more of it.
Moments later, the animal collapsed and dragged itself across the floor before dying, leading Dominique to realise all was not as it seemed with Alain and his girlfriend and what they were doing to him.
However, viewers were shocked and took to Twitter to comment on the distressing scene.
One angry viewer wrote: “c*** they [email protected] f***ing monkey cba #TheSerpent.”
Charles killed countless travellers in Thailand, Nepal and India during the 1970s, drugging them and often stealing their identitiesCredit: BBC
Another tweeted: “Poor Coco died from the poison #TheSerpent.”
Dominique grew increasingly distressed after Coco’s death and struggled to figure out how he could escape Alain’s clutches and return home to France from Bangkok.
The Serpent continues next Sunday, January 17 at 9pm on BBC One, with all episodes available on BBC iPlayer.