The Green Reaper has been releasing a noxious gas that causes horrible side effects. It's been found at eight crime scenes and leaves an eerie lime-green residue on everything in its wake. When the Metropolitan Police move the case to inactive, Vincent Lockwood leaves the force to continue the search on his own. Now he's missing and we believe another attack is imminent. You've been called in to gather evidence, find the Reaper's secret lair and uncover the mystery before more innocent people are hurt. The problem is, can you trust the clues you find, or has the Green Reaper already gotten to Lockwood?
A serial killer is on the loose. The police have dubbed him the Capricorn Killer, as he is remarkably similar to the Zodiac killer who claimed to have killed 37 victims in the 1960s, and was never found. With each kill, the Capricorn Killer leaves a series of ciphers that tell who and where his next victim will be. You and your friends think you have figured out the cipher and decide to check it out on your own. Upon entering his lair, you find a series of clues that point to his next victim. There's no time for the police. You and your friends, must save her.