Yes, definitely. But evil is not just about moral laws being broken, but evil exists in the person of the devil who may be behind some human evil behaviours.
I know it is true because as a pastor I have dealt with the evil forces personally.
That is why we all need God to help us.
God sets the standard so that we know the boundries between good and evil.
In this post modern world philosophy where everybody is entitled to his or her own opinion, and that is parlayed as 'truth', evil cannot be discerned in many instances. It becomes your standard vs mine. So lawlessness ensues.
But if we believe in God and adhere to His Commandments, we can differetiate between evil and good, because God has set that standard for us. This is to protect us and to free us from evil.
I have also done deliverance of people from the demonic forces. This is real and these forces seek to destroy us through bondages and control. Sometimes they manifest in addictions and their resulting behaviours.
Evil exists and they come to us in insidous ways; eg. through playing computer games such as warcraft, or through watching movies such as Harry Potter. While they seem harmless, in reality it is the unseen evil demonic forces teaching the unwary to open demonic doors into their lives.
May you have the wisdom to know the difference.