Set in Victorian London from the Queen of Mystery Romance Amelie Hampton is a hopeless romantic, which makes her the perfect columnist to answer lonely heart letters in The Marriage Gazette. When Amelie plays matchmaker with two anonymous lonely hearts, she also decides to secretly observe the couple’s blind date. To her surprise, the man who appears for the rendezvous is Harold Radcliffe—a grieving widower and a member of Amelie’s book club. Police detective Michael Baker has been struggling ever since his best friend and brother-in-law died in the line of fire. Because he knows the dangers of his job, he has vowed never to marry and subject a wife and family to the uncertainty of his profession. But when he meets Miss Hampton, he is captured by her innocence, beauty, and her quick mind. When a woman’s body is pulled from the river, Michael suspects the woman’s husband—Harold Radcliffe—of foul play. Amelie refuses to believe that Harold is capable of such violence but agrees to help, imagining it will be like one of her favorite mystery novels. Her social connections and clever observations prove an asset to the case, and Amelie is determined to prove Mr. Radcliffe’s innocence. But the more time Amelie and Michael spend together, the more they trust each other, and the more they realize they are a good team, maybe the perfect match. They also realize that Mr. Radcliffe is hiding more than one secret, and when his attention turns toward Amelie, Michael knows he must put an end to this case before the woman he loves comes to harm.

Seaside, England, 1886 Eva Caldwell is an accomplished and well-known photographer who often works with the local constabulary to assist in documenting crime scenes, which means she also often works alongside the handsome and charming detective, Nathan Winston. She appreciates his intellect and how he treats her like an equal, but Eva’s heart is still healing from a past relationship, so, for now, she decides to keep her feelings for Nathan a secret. One evening, Nathan arrives on her doorstep asking for a personal favor. Would Eva be available to photograph his mother’s legendary, week-long dinner party and matchmaking event? The catch is that Eva would also have to pretend they are courting in order for Nathan to avoid the many single women seeking his attention. Though wary of the charade, Eva agrees. Spending a week with the two things she loves most—her detective and her camera—sounds simple enough. And if she wants to imagine that Nathan’s pretend courtship of her is real, well, what’s the harm in that? But when a criminal from Nathan’s past threatens revenge on the detective, Nathan must be extra vigilant to keep his mother and the rest of the partygoers safe. He confides in Eva, and as the two work together to solve the mystery and apprehend the criminal, they find that they might capture more than they expected—each other’s heart.

London, 1887 When newly graduated medical doctor Charlotte Duvall receives word that her father has died, she immediately leaves America and returns home to see to her family's estate. Among her father's possessions is a box of her late mother's letters, which feels like a balm to Charlotte's grief-stricken heart. But the letters contain some inconsistencies that suggest there was more to her mother's death than Charlotte had been told. She turns to the one man she trusts more than anyone—her treasured friend and director of London's police force, John Ellis. John Ellis has harbored feelings for Charlotte ever since he first met her. Tucked into his heart are thoughts of her sharp mind, quick wit, and remarkable beauty. Though he has not yet found the courage to share his feelings with the young doctor, he is eager to help her in her hour of need. Investigating the details of a death was not how Charlotte imagined she would find love, but as she and John work to unravel a dark web of secrets and lies, she finds herself relying on him more and more—and opening her heart to him in the process. As the danger draws ever closer, John vows to do everything in his power to protect Charlotte from harm. But he fears protecting her heart might come at the cost of breaking his own.