Can a Venus Flytrap get rid of the flies in your house?

No, but it will kill the odd couple. What is remarkable about the functioning of the Venus Flytrap is that a prey has to come in contact with two trigger hairs in succession or touch one hair twice, for the lobes to close in less than 0.1 seconds! This is to ensure that it does not waste energy in trapping a fallen leaf or get activated by a raindrop. This intelligent trap tightens and increases its pace of digestion if it senses the prey trying to escape. Digestion usually takes about 10 days. If the prey is very small and manages to escape, the trap will reopen within 12 hours. It is a rare occurrence for a trap to catch and digest more than 3 preys in its lifetime.