If I Tell You I Have to Kill You When a professor of religious studies is forced to investigate why his students are being murdered, he discovers what ended his own life and is then reborn. Details Casts Videos Posters Title If I Tell You I Have to Kill You Release Date 2015-10-20 Runtime 01 Hours 30 Minutes Genres Drama Mystery Thriller Production Companies Goodness Films Production Countries United States of America Obba Babatundé... Jonathan Black... Tom Sizemore... Dr. Richard Baum... Keith David... Detective Harris... Robert Miano... Detective Wilkes... Reiley McClendon... Michael... Michael Bernardi... Max... Erika Barrett... Revel... Tommy Lister Jr.... Gabriel... Andrew Cappelletti... Harley... Mark Irvingsen... Male Doctor... Molly Johnson... Girl at the Piano... David Oakes... Lionel... Roderick Bascom... Detective Rob... Timothy Brennen... Mr. Mangione... If I Tell You I Have to Kill You - Trailer July 2016 (Trailer) Original Size (701x1000)