A Sebastopol home has been defaced with threatening and vulgar graffiti over its walls, including many references to drug dealing.
The windows of the Orion Street house were shattered before the attack.
Several children’s toys and a pram were also strewn over the front lawn.
A neighbour, who did not wish to be identified, said he first noticed the vandalism about a week ago.
"I heard a few bangs at night," he said.
"I haven't seen anything like it."
A Victoria Police spokesman confirmed police were investigating criminal damage to the property.
No arrests have been made.