While Roddenberry denied the influence of "Forbidden Planet" on the original Star Trek series I think that there are some clear influences. "The Man Trap" has some thematic similarities. FP is about a scientist and his daughter studying the remanants of an alien solution, and a crew of interstellar explorers land for a routine checkup and are attacked by an entity that they can't see. "The Man Trap" is about a scientist and his wife studying a dead alien civilization when a ship of interstellar explorers land for a routine check up and are attacked by an entity they can't see. The stories are definitely not identical but the similarities are hard to ignore.