London, UK - As they say, curiosity killed the cat, or in this case – found one.

Michael Hubank noticed that his next-door neighbor's London pad was for sale.

The scientific researcher and cat owner couldn't help but check out his neighbor's place on the internet, sneaking a peak at photos of the property for sale.

After clicking through the many listing pictures, he landed on page number 13 to discover a furry find.

Dogs Dog owner looking for tiny Dachshund can't help but laugh at her hiding spot!

Hubank was shocked to recognize the familiar four-legged friend. It was his own cat Freddy lying on his neighbor's bed!

The sneaky kitty had been casually living a double life between his house and the neighbors'.

Hubank took a screenshot of his pet sprawled out on the purple blanket and shared it on Twitter.

"Neighbors put the house up for sale. Couldn't resist checking it out on Zoopla," he said.

"That's our bloody cat."

The tweet immediately went viral and has gained more than 326,000 likes since.

Cat owners joined in the fun by commiserating over the sly behavior of their own animals.

"Cats have no loyalty," said one user.

Cats Cat's tragic secret uncovered by X-ray – how could he live like that?

"My friend...saw pix of her cat in frames lounging in the [neighbors'] living room," shared another of a cat who had a similar idea.

Hubank, who is a researcher at Royal Marsden Hospital, said the mischievous Freddy had returned home – for now.

He was also floored by the attention from his viral hit.

"Typical. A decade of posting thoughtful comments about #genomics goes largely unnoticed. But you send ONE cat tweet...that's enough cats!"

Seems like Freddy is hogging all the attention, on the internet and off!