Kindaichi Case Files Movie 2: Deep Blue Massacre (1999)

As a pair of towers in Tokyo are being prepared for their grand opening, there is a series of murders of people connected to the towers. Conan suspects that the mysterious Syndicate may also be involved.

Mouri Kogoro is called to a special case in the ancient capital of Kyoto. There, Conan meets Heiji and they team up once again to solve the case, recover the stolen Healing Buddha statue, and even discover the identity of Heiji's first love.

Shibuya, Tokyo, is bustling with the Halloween season. A wedding is being held at Shibuya Hikarie, where Detective Miwako Sato of the Metropolitan Police Department is dressed in a wedding dress. While Conan and the other invited guests are watching, an assailant suddenly bursts in, and Detective Wataru Takagi, who was trying to protect Sato, is injured. Takagi survived and the situation was settled, but in Sato's eyes, the image of the grim reaper that she had seen when Detective Matsuda, the man she had been in love with, had been killed in a series of bombings three years ago, overlapped with Takagi's.

A terrorist group invades a laboratory containing a deadly bacteria and destroys the lab with an explosion. They later announce via the internet they have gained possession of the bacteria and declare themselves to be the Red Siamese Cats, a terrorist group that was eradicated a decade ago.

The Isle of Koumi, a beautiful island in the Pacific Ocean. On the island, people pass an old legend down from generation to generation that there was the Seabed Palace, an ancient ruin at the bottom of the sea, where the treasure of female pirates Anne Bonny and Mary Reed was left. When Conan and his friends visit Koumi while on vacation, they meet some suspicious treasure hunters.

Police officers around Tokyo are being murdered by an unknown assailant. When Ran witnesses an attempt on the life of one of her friends in the police, she loses her memory. Now, Conan and Inspector Megure must find the murderer while Ran attempts to regain her lost memories.

While visiting Hachijo-jima, Conan sneaks aboard a security boat heading to the Pacific Buoy, an off-shore facility constructed near the coasts built to connect surveillance cameras used by police forces around the world. However, an engineer gets abducted! An eerie sound of a propeller hums underwater as a dark figure begins to creep toward Ai Haibara... When the forbidden Black Box is opened, the sealed-away past will surface above the treacherous waves!

Once brilliant teenage detective Shinichi Kudo was given a poison that reverted him to a 4-year-old. He's adopted the pseudonym Conan Edogawa so no one (save for an eccentric inventor) will know. Now he's got to solve a series of bombings before his loved ones become victims. Who is this madman and why is he doing this? Only the young genius can save the day but will even he be up to the task?

Ran’s secret past revealed! Ten years ago, something happened between her mom and dad. Now, plagued by nightmares, Ran is starting to remember… Meanwhile, a murderous card dealer breaks out of jail to seek revenge. His target: Ran’s father. Can Conan stop him in time and save his girlfriend’s family?

A rash of sniper attacks leaves the streets of Tokyo empty and the public terrified to go outside. It’s up to Conan and his friends to find the culprit, but the case goes deeper than it seems. Military cover-ups, conspiracies and murder abound in this fast-paced, thrilling mystery!