Between 1968 and 1973, the Zodiac admitted to killing 17 people in California. He continuously sent the police cyphers and riddles to uncover the killer’s identity and the name of next victim he was threatening to kill. But law enforcement was unable to crack the code.

Now, 30 years later, he’s back. Or is he? Somebody claims to be the Zodiac and starts killing again, same M.O. as the original. The hunt is on, but we soon discover that it’s a copy cat, and the real Zodiac, who’s been in retirement since 1978, doesn’t like it at all.