Detective Richard and his assistant policeman Susan arrived at the apartment, where, according to their informant, there is a gang of robbers. Several waves of major bank robberies swept through the city. The bandits act boldly, decisively and thoughtfully. Apparently they are led by a man of remarkable mind. Detectives did not find the bandits, they literally slipped from the hands of the servants of the law. It is necessary to examine the apartment, the found evidence can tell where the gang members went. The enemy is smart, so you also need to act wisely, calculating his steps in advance in Echoes of Crime.