Michael Fassbender as Callum Lynch
Michael Fassbender as Callum LynchFacebook / Assassin's Creed

Here's some good news for those eagerly looking forward to the movie adaptation of Ubisoft's popular video game series, "Assassin's Creed." A new teaser reveals a voicemail by characters portrayed by Michael Fassbender and Jeremy Irons.

The voicemail features Irons as Alan Rikkin, the chief executive officer of the company, Abstergo, reports Ecumenical News. The first part of the voicemail has Rikkin talking about the company and the products manufactured by it. However, the second part is taken over by Fassbender's character, Callum Lynch, whose voice says, "These are the sacred tenets of our brotherhood." Fans of "Assassin's Creed" video games will find the phrase familiar, as it is an oath spoken by protagonists in the video games.

A teaser picture, which is a still from the movie featuring the character Lynch in a modern-day setting, has also been released by Ubiblog. The blog describes Lynch as a person who lives with "genetic memories" of a 15th-century Spanish assassin named Aguilar.

In the picture, Lynch appears to be making charcoal drawings in his prison cell. The drawings are ghostly and shadowy portrays of some unidentified people. Though not much has been revealed, it seems the people in picture will have a significant role in the movie.

"Assassin's Creed" will revolve around the life of Lynch, who will be on a mission to unlock the genetic memories of his ancestor, Aguilar, through a revolutionary technology. During the process, he will discover a secret cult group called the Assassins and learn that he is a descendant of it. As depicted in the video games, the Assassins possess superior knowledge and powers to take down a rival group known as the Templars, which still has members existing in the present day.

Besides Fassbender and Irons, "Assassin's Creed" will star Michael Kenneth, Williams Brendan Gleeson and Marion Cotillard. The movie is scheduled to be released Dec. 21, 2016.