The sins of the father cast a shadow on Frankie when she’s a suspect in a jewelry heist. In order to clear her name, Frankie inserts herself into the investigation only to discover that the victim of the theft is someone from her past. Forced to work with the unlikeliest of partners, Frankie realizes that catching a thief requires thinking like one.

After Frankie and Trudy interrupt a violent home invasion, they’re hired to root out the suspected culprits – Communists at the family’s factory. Trudy goes undercover, but when Frankie is nearly killed in an explosion outside the factory gates, it’s clear someone knows Drake Private Detectives are getting close to cracking the case.

Frankie is shocked when Eric Morrison, the son of her former Signal Corps commander, appears on her doorstep in the dead of night. A very dead body has suddenly appeared in his luggage - can the Drake Private Detectives help? But soon they discover the young man isn’t as innocent as he’d like them to believe he is.

When Elsie, the faith-healing daughter of a preacher, disappears, Trudy brings the case to the agency. Frankie and Trudy agree on one thing: there’s no way a teenage girl is as innocent as her parents believe. They discover Elsie has been not just moonlighting as a jazz singer, but also that she’s been planning to run away with her handsome mentor. But that’s only the tip of the iceberg.

Frankie and Trudy go Hollywood when they’re hired to investigate what looks like a murder captured on film by none other than legendary film producer Mack Sennett. To blend in, Frankie becomes a reluctant stunt double for leading lady Sofia Devoe, while she works to find out who could be a real killer. Can the detectives discover the truth behind the façade before the final credits roll?

Frankie and Trudy’s night out at Quon’s Speakeasy turns deadly when bullets start flying, injuring the young son of the owner. Frankie seeks out local gangster Joe Perry, who she suspects is responsible for the attack. But the tables are turned when Joe kidnaps her, leading Trudy and Morality Officer Mary Shaw on a search through burlesque halls and to bootlegger’s stills.

Morality Officer Mary Shaw recruits Frankie and Trudy to investigate the disappearance of an English teacher in Chinatown, but Frankie suspects Mary isn’t telling them the whole truth. They soon learn that Mary has a personal connection to the missing woman, who was involved in pursuits much more wide-reaching and much less virtuous than teaching.

A day at the air show turns into a day at the office for Frankie and Trudy when they prevent the kidnapping of aviator Phillip Anderson’s son Charlie. Although Anderson shuns their offer of assistance, Frankie and Trudy stay on the case. Their worst fears are realized when Charlie and his nanny go missing. Things aren’t as they seem in the Anderson house, and no one can be trusted.

A young wife of a veteran hires the detectives to investigate her husband, but before they can get very far, the man is killed in an explosion. Frankie discovers the murder is just one in a series seemingly connected to a secret military facility in England. Frankie comes face-to-face with a long-lost friend who may be the only one able to help--if she can face her own ghosts.

The lady of the stately Winchester house wants to hire Frankie to confirm that Anna, a member of a Cossack dance troupe, is actually Princess Anastasia of the Romanov family. Frankie is dubious--surely there’s someone more appropriate than a private detective to handle the case. But after Anna’s life is threatened, Frankie realizes that princess or not, the young woman needs protection.

After Frankie gets a cryptic telephone call, she bolts from the office. As they set out to find her, Trudy tells Morality Officer Mary Shaw about how Frankie became a private detective. Immediately after the war, Frankie worked as a spy for MI-5, and as they quickly discover, the past doesn’t always stay in the past.