Detective Inspector Humphrey Goodman and his team are left stumped when millionaire environmentalist and scientist Dan Hagen is shot on his boat while out at sea. The evidence seems to point to a robbery gone wrong, but with no other boats reported in the area, Goodman suspects a member of Dan’s team, his wife of nine months, his ex-girlfriend, his scientist partner and a research graduate who were diving together in plain sight of one another at the time of the murder. A metal toy soldier with no fingerprints found at the scene is the only clue.

The outgoing governor of Saint Marie is poisoned at her leaving party.

The team must solve a deeply personal case when Dwayne's old mentor is found dead and a text message from beyond the grave says it was murder. DI Goodman tries to unleash his inner gourmand.

DI Goodman's aunt Mary comes to visit him, but things take an unexpected turn when she becomes the only witness to the murder of a tourist. Some unorthodox advice on love from Dwayne leaves JP in a spin.

The team enter the high-pressure world of fine dining when a well-known chef is murdered in his own restaurant. Florence has one final lesson on love for DI Goodman and Dwayne gets a chance to repay an old debt.

When a marine salvage hunter is killed, the evidence seems to point to one man. It would be an open-and-shut case for the team if it wasn't for the suspect's solid alibi. Meanwhile, it is JP's stag do - and with Dwayne as best man, what could possibly go wrong?

The team is faced with an impossible murder when a young backpacker is shot inside a sealed room. DI Goodman has a date, plus it is the day of JP's wedding - but will he make it to the altar?