Roses and Lilies

Intro (First of all, ignore the woman in the picture. She isn't anyone, this is the only picture that had both a red rose and orange lily, so...) So some people are in trouble. There are disappearances. People would disappear anywhere from one to three at a time. After the passage of three days, these people would be returned, seemingly unharmed, but they have no memory of the three days they have been missing, and they are marked with either a red rose or orange lily, the purposes of which are known only to whoever spirited them away. You have heard all about those disappearances, and subsequent returns. You more than likely think that those are just urban legends, or some romance trope... until...