This wasn’t a model investment.

A famed catwalker claims she lost $150,000 that her financial adviser convinced her to sink into a movie he was making.

Accountant Nick Schlatmann allegedly promised a 20 percent return to Slovakian stunner Kinga Rajzak in 2013, she claims in a Manhattan federal court lawsuit.

“I really just want you to trust me,” Schlatmann, who works for the Manhattan-based DDK & Company, allegedly wrote to the model.

He promised a possible cut of the earnings from “Tagore: Burnt Offerings,” about 1913 Nobel Prize-winning Indian author Rabindranath Tagore, Rajzak claims in court papers.

“The ‘investment’ turned out to be a complete flop. Production of the film was not completed,” according to the lawsuit.

DDK dropped Rajzak — who was the face of Prada in 2011 — as a client after her lawyer sent a letter asking for her money back.

DDK, which is named as a defendant, and Schlatmann did not respond to a request for comment.