When Ilana travels to Santorini with her Greek boyfriend Mike for his sister Alex's wedding, she's thrilled to be asked to be her American Maid of Honor. Mike surprises Ilana by proposing, leaving Ilana gets caught in the whirlwind created by his well-meaning and overly enthusiastic mother Athena.
After the death of her Grandmother, Jane Dormant travels to the family’s remote, ancestral home hoping to receive a large inheritance. When Jane’s estranged, half-sister Jennifer arrives at Hobbes House to claim her part of the estate, the sisters’ simmering hate breaks out completely. But then a violent, unexpected storm cuts the estate off from outside help and a wave of bloodthirsty zombies lays siege. Now the sisters have to learn how to fight back together.