Legendary Tobis TV has acquired the TV & Film rights to Martta Kaukonen’s THERAPIERT aka FOLLOW TO BUTTERFLY!

German series production company Legendary Tobis TV has acquired the rights to Martta Kaukonen’s internationally bestselling, exceptional thriller debut THERAPIERT aka FOLLOW THE BUTTERFLY and will develop it into a German language series.  

We are very excited to start working on THERAPIERT by Martta Kaukonen, which is one of the most thrilling debuts of this year. With its strong female characters and surprising twists, it is perfect for a series adaption”, says Isabel Hund, CEO of Legendary Tobis.

The offers have been coming in from abroad since FOLLOW THE BUTTERFLY was published in 2021. Now, a production company  Legendary Tobis that understands my novel the way I intended, even between the lines, has been found. I feel as if my protagonist, the 20-year-old serial killer Ida, has finally found her way home.
– Martta Kaukonen, Author

Legendary Tobis TV is a Joint Venture between leading German producer-distributor Tobis and the Los Angeles based Legendary Entertainment. The Munich based company was founded in 2022 and focuses on high-end scripted series and mini-series driven by local stories and talent.

Martta Kaukonen’s internationally bestselling psychological thriller FOLLOW THE BUTTERLY has been sold to 15 territories and is creating buzz wherever published, recently in Germany, Poland, Greece, Denmark etc. Heyne Verlag in Germany published THERAPIERT in February 2023 and it hit the Spiegel Bestseller list, has sold more than 24,000 copies, and has received multiple starred reviews! UK & US publisher Pushkin Press will launch FOLLOW THE BUTTERFLY in March 2024. Book 2: RETURN OF THE BUTTERLY will be published in Finland in December 2023 by WSOY.

Rights to this unique international bestseller are still available e.g. in France, Spain, Netherlands, Norway, Sweden, etc.

English and German editions are available!

Download the materials for FOLLOW THE BUTTERFLY here!

WSOY, March 2021, 471 pp.

Rights sold:
CZECHIA: Albatros Media
DENMARK: Forlaget Falco
GERMANY: Heyne (2-book-deal)
GREECE: Psichogios (2-book-deal)
HUNGARY: Partvonal Kiadó (2-book-deal)
LATVIA: Jumava
POLAND: Czarna Owca (2-book-deal)
UNITED KINGDOM: Pushkin Press (2-book-deal)
UNITED STATES: Pushkin Press (2-book-deal)
WORLD ARABIC: Al Arabi Publishing
WORLD ENGLISH (Audio): Audible
FILM & TV RIGHTS: Legendary Tobis TV

Reading materials: English edition, German edition

About author

Martta Kaukonen

Martta Kaukonen (1976) lives in Helsinki. Before becoming a full-time author, she worked as a film critic, whose reviews have been published in both Finland’s biggest newspaper Helsingin Sanomat and a popular women’s weekly magazine Me Naiset. Martta has a master’s degree in arts. She has interviewed the likes of Robert Downey Jr. and Justin Bieber. Martta met her husband at his second hand bookshop and fell in love. Alongside writing, Martta loves psychological thrillers, film noir, flea markets, abandoned houses and travelling. Martta’s debut novel FOLLOW THE BUTTERFLY was published in March 2021. FOLLOW THE BUTTERFLY is an Instagram sensation in Finland, and the Helsingin Sanomat newspaper released a highly-praising review of it. During the first two months, the audiobook was listened to an awe-inspiring 2000 times and over. FOLLOW THE BUTTERFLY  has been compared to Gillian Flynn’s novel ‘Gone Girl’. 


2023, Crime & Suspense

Meet Me in the Darkness

Martta Kaukonen

2022, Crime & Suspense

In Your Shadow

Martta Kaukonen

2021, Crime & Suspense

Follow the Butterfly

Martta Kaukonen