A fierce blizzard is burying the eastern seaboard, but on the icy Rhode Island shore, renowned artist Maddie Morrison finds warm sanctuary from a contentious divorce at the legendary Ocean House. Hours later, her body is found buried under a blanket of snow, and her little daughter, CeCe, has disappeared without a trace. For Detective Conor Reid; his brother, Tom, a coast guard commander; and Maddie’s grieving sister, Hadley, the posh hotel becomes ground zero for an investigation. Trapped by the blizzard, they must hunker down and determine who in the young mother’s life could have possibly wanted her dead. There are stories of a twisted romantic past. Of old jealousies and resentments that still cut to the bone. And a history of greed, rage and revenge that created the perfect storm for murder.

After artist Claire Beaudry Chase is attacked and left for dead in her home on the Connecticut coast, she doesn’t know who she can trust. But her well-connected husband, Griffin --- who is running for governor --- is her prime suspect. Just before the attack, Claire was preparing for an exhibit of her shadow boxes, one of which clearly accuses Griffin of a violent crime committed 25 years ago. If the public were to find out who her husband is, his political career would be over. Claire is certain her husband and his powerful supporters would kill her to stop the truth from getting out. When one of Claire’s acquaintances is murdered, the authorities suspect the homicide is linked to the attack on Claire.

Years ago, Beth Lathrop and her sister, Kate, suffered what they thought would be the worst tragedy of their lives the night both the famous painting Moonlight and their mother were taken. The detective assigned to the case, Conor Reid, swore to protect the sisters from then on. Beth moved on, throwing herself fully into the art world, running the family gallery, and raising a beautiful daughter with her husband, Pete. Kate retreated into herself and took to the skies as a pilot, always on the run. When Beth is found strangled in her home, and Moonlight goes missing again, Detective Reid can’t help but feel a sense of déjà vu. He immediately suspects Beth’s husband, whose affair is a poorly kept secret. He has an airtight alibi --- but he also has a motive, and the evidence seems to point to him.

When Ruth Ann (Roo) McCabe responds to a text message while she's driving, her life as she knows it ends. The car flips, and Roo winds up in a hospital bed, paralyzed. Everyone thinks she's in a coma, but Roo has locked-in syndrome --- she can see, hear and understand everything around her, but no one knows it. Mathilda (Tilly) is Roo's sister and best friend. She was the one who texted Roo and inadvertently caused the accident. Now, Tilly must grapple with her overwhelming guilt and her growing feelings for Roo's boyfriend, Newton --- the only other person who seems to get what Tilly is going through.

Julia’s life has been turned upside down by her daughter’s death. While she expects to find nothing more than peace and solitude as she house-sits, she finds herself drawn to the handsome man who oversees the lemon orchard. Roberto reveals to Julia the heartbreaking story of his own loss --- yet, unlike Julia, his daughter was lost but never found. Despite the odds, cannot bear to give up hope.

Clare Burke's life took a devastating turn when she tried to protect her sister, Anne, from an abusive and controlling husband and ended up serving prison time for assault. The verdict largely hinged on Anne's defense of her spouse, and the sisters have been estranged ever since. Nearly 20 years later, Clare’s niece turns up on her doorstep. The two long for a relationship with each other, but they’ll have to dig deep into their family’s difficult past in order to build one.

This is a heart-warming yet heart-wrenching portrait of three far-flung sisters who come home to Martha's Vineyard one last time.