Watch or Download Detective Conan Movie 9 : Strategy Above The Depths

In the present, Conan and the gang are taking a long needed vacation aboard a luxury liner called St. Aphrodite, Which was paid for by Sonoko. Earlier an established ship architect was found in his car on the bottom of a cliff. It is determined he died from a heart attack.

The kids decide to make a bracelet made of shells for Ran. While preparing to eat dinner on the cruise ship, Professor Agasa shows Conan a new invention he made which were Cuff Link Speakers. Kogoro takes the cuff link speakers away from Conan and puts it on his suit without knowing they were speakers, saying a "dandy" man like himself should wear them.

Still waiting, Conan takes off his glasses to clean them and drops them because he was bumped by scriptwriter named Hironari Kusaka, who notices Kogoro Mouri and begins to talk to him. He also introduces to Kogoro to Minako Akiyoshi (the lead designer of the design team for the ship). Hideto Yashiro was Takae's husband.

The next day, the Detective Boys, Ran, and Sonoko decide to play hide and seek on the cruise ship. The kids sneakily put the bracelet in Ran's pocket, Sonoko and Haibara get picked to be it. Conan forgets about the game while shooting a volley ball at a wall. Therefore, Conan is found easily. Sonoko and Haibara find the rest of the kids could not find Ran.

Meanwhile, Kusaka is on the phone with Akiyoshi. Kusaka tells her that he will read his new script to her and not for her to interrupt him. He plays a tape recorder near the phone, puts on a windbreaker, and exits his room. He sneaks into the CEO's room and kills her.