In her late 20s Alisa Lenz has to start over in life. She returns to Schönroda, the hometown of her adoptive parents, because she wants to start working for “Castellhoff Optische Werke“. There she meets the charming son of the company's boss, Christian Castellhoff. As soon as they lay eyes on each other, the fire of their love starts to kindle deep within them, but his fiancee Ellen isn't one to give up easily. From her late father Alisa inherited a passion for glass and crystal jewelry. A earring with a beautiful rainbow crystal is the only thing she has left of her biological parents.