Hairdresser Kayleigh Dixon's boyfriend Chris Mahaffy thought she had been killed after the Hackney Carriage driver sped off with its door open.
The terrifying incident was caught on camera by Chris’s sister, who was filming after the group claim they were being ripped off by the driver.
Kayleigh, 29, had been enjoying a night out with family and friends and had got into the cab in Dale Street, Liverpool.
They were attempting to head home to Speke at around 6am and alleged the driver refused to engage his meter and instead demanded a fare of £30 up front.
After accepting the fare due to the late hour and cold weather, Chris claims the driver then demanded more money.
He said: “He turned around and said that because there were five of us he actually wanted £40 - he was very angry and aggressive.
“We decided to get out and Kayleigh was the last to leave - the driver didn’t know that my sister was filming the incident.”
As the clip shows, when Kayleigh directed Chris’s sister to film the driver’s badge number on the inside of the door, he suddenly drove off - dragging the young woman several metres along Dale Street and leaving her lying injured on the floor.
A furious Chris said that he chased after the driver, who still had his doors open, but claimed he raced through a set of red lights as he drove away.
He said: “Kayleigh had fallen forward and banged her head - she was basically out cold in the street - I thought ‘oh my god he’s killed her.’”
He added: “I was shaking with anger - I hope we find him and he gets dealt with properly.”
Chris took Kayleigh to see a doctor yesterday and said that while she has been cleared of any major injuries but she has been left badly bruised and suffering dizzy spells.
The couple said they will meet with police today to report the incident.
Kayleigh posted the video on social media, where hundreds of people have commented to wish her well and condemn the actions of the cab driver.
After posting the video, Kayleigh later updated her friends to let them know that she was ok, but vowed to make sure the issue was taken further.
She said: “Would like to thank everyone for all your kind comments and messages regarding my video of what happened last night I am ok fortunately could of been a lot worse but it’s not the end thanks everyone.”