Told from the perspective of the protagonist Emily, this is a complex tale of mistaken identity, family entanglements, and romantic trials. After being rescued by Joseph in an accident, Emily is mistakenly identified by him as another woman named Emma, and he insists on marrying her. Despite Emily's attempts to clarify her true identity, Joseph remains convinced. Following their marriage, Emily, at Joseph's behest, takes up a position at a pharmaceutical research institute, only to face ostracism from her colleagues due to the confusion over her identity. Meanwhile, she must also navigate the scheming of her stepmother and sister Abigail, as well as the complicated emotions stirred up by her ex-boyfriend William.