Star Trek: Catspaw

A landing party beams down to Pyrus 7 to survey the surface. The Enterprise loses contact with them, then gets a message from one crewman, Jackson, asking to be beamed up. When they do, he's found frozen dead and a voice speaking through him tells them to leave. Refusing to abandon Sulu and Scotty, Kirk, McCoy, and Spock beam down to encounter witches, castles, a black cat, a warlock, and a sorceress, all determined to have them leave.