"Underworld" is about revenge. In the opening, Franka helps put the crime boss Johnny behind bars. That is why the loyal Bep wants to avenge Johnny by torturing Franka to death. The middle section is a road movie in which Franka must be lured to Bavaria, to the place of her execution. The trick is simple: Franka is tasked to deliver an antique Thunderbird to a car museum near Munich. An unsuspecting Franka falls into the trap and cheerfully starts on a 500 mile trip on the autobahn...

Creator Henk Kuijpers' Franka is a glamorous, globe-trotting private investigator in bright, fast-paced adventures. In any Franka album, expect sexy fashions, flashy cars, all kinds of fantastical planes and ships, exotic locales--beaches, mountains, ancient castles, hyper-modern mansions--drawn in Kuijpers' precise clear-line style.

From the publisher:

Franka is one of the most popular comic series in the Netherlands. The adventures of this sexy redheaded heroine are followed by millions of readers. Franka captures a present day variant of classic 'grand adventure' strips in a well composed 'clear line' style. Bold artwork packed with careful graphic and architectural detail. Adventure enlivened by wit.