In 1970s Los Angeles, bumbling private eye Holland March and muscle-for-hire Jackson Healy become unlikely partners when they find themselves both looking for a missing woman named Amelia following the death of a high-profile porn star. Amelia's ties to the deceased actress are unclear, but as other members of the porn industry turn up dead, March and Healy's investigation reveals a much bigger conspiracy than the duo anticipated. With help from March's teenage daughter Holly, their sleuthing eventually unearths corruption within the federal government..