Emma Sharpe is recovering from a shattering loss while her husband, Colin Donovan, is deep into his latest undercover mission. So they're grateful to enjoy a peaceful autumn weekend together on the southern Maine coast to celebrate Colin's brother Andy's wedding. But the peace is short-lived when Kevin Donovan, a marine patrol officer, receives a call to check on suspected food poisoning at a party aboard a yacht. Colin decides to tag along. He is...