After my sister got pregnant before marriage, she cried and asked me to accept my husband's child. Don't blame me for not remembering the old feelings.

When her college-aged sister Skylar falls pregnant out of wedlock and refuses to name the father, Aria brings her home and cares for her through the pregnancy. On the day Skylar is due to give birth, she tearfully confesses that the child belongs to her and Aria's husband, Brandon. Aria's parents side with Skylar, urging Aria to forgive her sister's youthful ignorance and to care for her during postpartum recovery.

Skylar insists Aria should step aside, declaring that only the unloved one is the third party and that Aria is unworthy of Brandon. Aria finally snaps, confronting the sister who has always taken everything from her. When Mrs. Stone arrives, she slaps Aria and blames her for failing to keep her man and for bearing no child in three years of marriage.

Surrounded by a family that has always favored Skylar, Aria must decide whether to keep yielding as the older sister who always gives in.