Invisible Murder: A CCC File

Casey Wellington, a renowned investigator of the Bureau until two years ago, is suddenly summoned to solve a cold case aptly named the 'Invisible Murder.'
The case is about the death of an old, rich man that occurred about six months ago.

But, wait, there's more.

The victim died at home, a high-end, modern apartment complex with a total of 150 security cameras surveilling the premise.
And none of the cameras caught any sign of the culprit entering or leaving the apartment during the time the victim was believed to be alive.

There are only a handful of witnesses/suspects, and Casey is entrusted with the impossible case with an ultimatum from his boss that he would be fired if he doesn't solve it in one week.

Play as Casey and solve the titular 'crime of the century' with a series of mind-boggling puzzles, humorous choices, an upbeat sidekick, and more!

* This is a visual novel/interactive fiction mystery detective-investigator deduction-adventure game.