An American woman living in Brisbane who attempted to share the tradition of Halloween with her neighbours has been left shattered by a group of people who cleaned out her treat offerings.

Ivy Campbell left a "massive container" of chocolate out the front of her Gordon Park home for trick-or-treaters with a sign specifically asking they "take a couple of pieces of candy".

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But CCTV footage shows a group of people - the second group to come to the house - making off with handfuls of chocolate.

It left nothing remaining for others, Ms Campbell said.

"It really just hurt my feelings," she told 7NEWS.com.au.

"I was so excited about Halloween this year.

"It just made me feel horrible, to be honest.

The woman was caught going back a second time to take more treats from the home. Credit: Ivy Campbell / Supplied

"I felt mostly horrible for the kids who came after and saw an empty bowl."

Ms Campbell said she spent around $20 on chocolates including Freddo Frogs and Celebrations, as well as free water bottles.

She said it was particularly disappointing that members of the group who took chocolate did not appear to be genuine trick-or-treaters.

Chevron Right Icon 'It just made me feel horrible, to be honest.'

"The person who's at the front, I don't know if it's an adult or a child. It's not like a young child obviously," she said.

"But you can see her at the end. She walks away and comes back and just grabs the rest of whatever's in there."

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Ms Campbell said while celebrating Halloween as a child, her family in the US would often leave chocolate at the front of the house and people could be trusted not to take advantage.

She said the behaviour went against the spirit of Halloween.

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"It's never, ever been a problem," she said.

"It's more about bringing everybody together in the neighbourhood - maybe meeting your neighbours when you haven't met them before."