The phrase "outrageous antics" implies to me it's a comedy. If it isn't, you might need to rethink these 2 words.
Secondly, "a young man" is a pretty bland and generic phrase to use to describe who I assume is your MC. Can you alter it to give readers something more specific to latch on to? (This could be his name, or his occupation, or his most endearing/defining quality). You would be able to say loads more about the story and its plot arc if you get the phrase just right, eg:
The outrageous antics of a self-absorbed aspiring cabaret artiste living in a house full of ghosts.
The outrageous antics of Boris, a bumbling loner who can't find anyone else to love him and do his laundry since his mum died, living in a house full of ghosts.
(You get the idea...!)
Thirdly, I'm unsure about the choice of "ghosties" over the more standard "ghosts". "Ghosties" sounds a bit childlike, but again, that may be your intention. My attention was certainly drawn to your choice of word, and its use intrigued me.
Hope some of this helps!