intrigue
nounA secret or underhand scheme; a plot.
nounThe practice of or involvement in such schemes.
nounA clandestine love affair.
intransitive verbTo arouse the interest or curiosity of.
intransitive verbTo effect or cause to be accepted or rejected by secret scheming or plotting.
intransitive verbTo engage in secret or underhand schemes; plot.
To entangle; involve; cause to be involved or entangled.
To plot for: scheme for.
To practise underhand plotting or scheming; exert secret influence for the accomplishment of a purpose; seek to promote one’s aims in devious and clandestine ways.