A group of friends must solve a murder case on a luxury yacht.
Lena and her four best friends were ecstatic for their week-long vacation aboard the luxurious yacht, The Sea Serpent. The first few days were perfect: they relaxed on the sun-drenched deck, swam in the crystal-clear water, and indulged in the sumptuous meals prepared by the on-board chef. But on the fourth day, their carefree vacation took an unexpected turn when they woke up to find one of their group members, Jake, brutally murdered in his cabin.

The yacht captain immediately notified the authorities, but they were hours away from reaching them. Lena knew they had to act fast to catch the killer, or they would be stuck with them on the yacht until the authorities arrived.

Everyone in the group was a suspect, and Lena's intuition told her that the killer was still among them. They decided to work together to solve the mystery and find out who among them was the murderer.

As they went through Jake's belongings, they found a cryptic note that led them to believe that the murder was related to his work. It turned out that Jake was working on a high-profile case that involved a dangerous criminal, and he had uncovered evidence that could put them behind bars.

The group used their individual skills and knowledge to piece together clues and solve the case. After a nail-biting investigation, they finally identified the killer, who had been hiding in plain sight all along. With no one else to turn to, they subdued the killer and locked them in a room until the authorities arrived.

The once-idyllic vacation had turned into a thrilling and dangerous adventure, but the group emerged victorious. They bonded over their shared experience and knew that their friendship would be forever cemented by this tragedy turned triumph. From then on, every time they looked back at their vacation aboard The Sea Serpent, they would always remember the time they solved a murder case on a luxury yacht.