Dangerous Lies is a 1921 British silent drama film directed by Paul Powell. Alfred Hitchcock is credited as a title designer. The film is now lost.
As described in a film magazine, Joan (Glynne), a poor rector's daughter, marries a bounder and, after she discovers his true character, leaves him to make her way in London. She meets and falls in love with Sir Henry Bond (Powell), a wealthy collector of antique books, and marries him after reading of her husband's sudden death. Later it is discovered that her husband was not dead, and that he had the notice printed to throw creditors off his trail. Joan goes to his hotel room and a struggle ensues in which her husband falls dead from a heart attack, leaving her free for happiness with her book connoisseur.