Two Warrnambool women aged 28 and 20, and a 27-year-old man, appeared in Warrnambool Magistrates Court on Thursday charged with offences, including false imprisonment and possessing a firearm.

The court heard the victim messaged the man on September 9 and they agreed to meet up. He drove her to his father's house about 10pm and the pair had a 20-minute conversation in his bedroom.

Then at 10.30pm, the two female accused allegedly entered the bedroom. They were aggressive, accused the victim of being a "cop" and a "dog" and then held her down by her hair.

The 20-year-old woman allegedly held a knife to the victim's throat as she was lying on the floor.

The manthen produced a firearm and held it to the head of the victim, who began screaming.

The court heard the victim managed to escape and fled the property, running onto Bostock Street and flagging down a passing car.

The victim was hysterically crying and screaming for help.

The male witness who stopped his vehicle helped the victim call 000. As they waited on the side of the road, the three accused arrived in two separate vehicles.

The witness, whose vehicle was then blocked, reversed and left the scene, turning right onto Flaxman Street.

The court heard the man briefly tailgated the witness, who then drove to Warrnambool police station.

The victim, who was visibly distressed, was transported to Warrnambool Base Hospital.

The court heard the knife and gun were located at the women's properties.

The man was arrested by the Victoria Police Special Operations Group on Wednesday. He did not apply for bail and was remanded in custody.

The accused women were each granted bail with strict conditions, including they not contact each other or the victim, and they abide by an overnight curfew.

They will appear in court again in April.

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