Lily Tomlin and Dustin Hoffman play existential detectives in this wild philosophical satire. Among the clients who have hired the duo to spy on them are a hapless idealist (Jason Schwartzman) fighting suburban sprawl and consumed by his coincidental encounters with a Sudanese refugee, as well as a firefighter (Mark Wahlberg) torn between his overwhelming moral dilemmas and the seeming meaningless of life. Complicating the investigations is the arrival of their glamorous nemesis and former student, Caterine Vauban (Isabelle Huppert), who offers a nihilistic alternative to the sleuth’s gospel of cosmic concatenation. Few films have dealt so amusingly with the chaos and contradictions of the early 21st century, and Tomlin, as she so often does, electrifies an already impressive ensemble.