Tamsin recently married renowned composer Robin Featherstone. Robin is much older, but Tamsin doesn't care—she's in love. And she knows Robin loves her too, even if he is very close to another young woman—his assistant, Mia. Meanwhile, Robin's ex-wife and grown children aren't happy—they're sure Tamsin is a gold-digger and Mia is an opportunist. Then, when Robin suddenly dies, the family's worst fears are realized: Tamsin stands to inherit everything. But when the will is read, its contents are beyond shocking. As Mia and Tamsin are pitted against each other, only one thing is clear: Robin's family will go to any lengths to stop either of them inheriting even a part of Robin's estate. Isolated in the family mansion, fearing for their lives and distrustful of each other, Tamsin and Mia are determined to stand their ground. But then a dark family secret is revealed which may engulf them all...