How many movies have Kevin J. Lindenmuth and Sarah K. Lippmann collaborated on?

They have worked on 4 movies together! Their first movie together was Addicted to Murder 2: Tainted Blood (1998) while their highest rated movie together was Time Enough: The Alien Conspiracy (2002). They have not worked together since Time Enough: The Alien Conspiracy (2002). They are most known for their horror films together.