Eliza and Anna are sisters, twin sisters to be exact. Ever since they were young, they shared everything with each other; clothes, secrets and laughter were what they valued best. However, something they can't share is a fiancee. Ivan Hale has been a longtime childhood friend of the twins, and Eliza has loved him since they met. She supported him through his ups and downs and in return, she finds out he is engaged to Anna. It wasn't until one faithful day, when Ivan gets into an accident, that changes the course of these three fates forever. With Anna suddenly out of the picture, it is up to Eliza to once again take care of Ivan, but as his substitute bride.
Part I: There's a new dynamic in the group now that Sarah's got a BFF. Tensions rise, and Emily feels herself changing for the worst.
Part II: Just when things seem to start coming together for Emily and Sarah, a tragedy strikes. One of the twins must learn to move forward in adulthood faster than she ever could've imagined.