connivence

enUK

con·niv·ance

also con·niv·ence C0576500 (kə-nī′vəns)n.1. The act of conniving.2. Law Cooperation in the commission of an illegal or wrongful act.
Thesaurus

connivance

also connivence
nounA secret plan to achieve an evil or illegal end:cabal, collusion, conspiracy, intrigue, machination, plot, scheme.