Brandon Marshall, in Paris for his twin sister's wedding, has a fling before the big day. At the end of a whirlwind week of discovering each other, Brandon and his lover place a scarlet lock on the Love Lock Bridge.

Follow Brandon through six years of letters - to the citizens of Paris, on everything from how to make love, to eating passionate fruit - and to the lover, who is now his brother-in-law.

Can Brandon and Hubert keep their oath to leave the past in the past? As Hubert makes the most of his new marriage, Brandon moves on with his life, trying to rediscover the heights of passion he shared with his brother-in-law that brief, white hot week. If a lock on a fence is meant to keep a forbidden love contained, what might happen if they cut the lock off?