'Hesther', a skilled bartender of 'Collateral Bar', hears about a jailbreak of 'Jackal' known as the rare, notorious murderer. While thinking it`s not a big deal for all she cares, she finds out that 'Collateral bar' was a secret national intelligence agency.
After working for seven years, Hesther shockingly recognizes 'bar master' also is the director who compares information to spies. The master has to work undercover for 100 days to chase Jackal and she wants Hesther to keep spies staying in the bar for camouflage until she returns.
Hesther has to pretend to know without knowing anything and tells a lie that she will give key information to someone who treats her best. The three charming spies who misunderstood her words begin to seduce her for spying.