Who said "I need your help. There's a woman."?

This quote is attributed to Sherlock Holmes.

I need your help. There's a woman. - Sherlock Holmes

"I need your help. There's a woman."

Sherlock Holmes

"The game is afoot!"

"Elementary, my dear Watson."

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."

"I am not a romantic, but I am a realist."