Dreams involving themes of deception, violence, and financial gain can often symbolize inner conflicts or feelings about control in your life. Here are some possible interpretations of your dream:

1. Conflict and Decision-Making: The act of planning a deceptive act and carrying it out may reflect a situation in your waking life where you feel pressured to make difficult choices. You might be grappling with ethical dilemmas or the fear of consequences related to your actions.
2. Fear of Exposure: The presence of someone following you after the act could signify anxiety about being discovered or facing repercussions for your decisions. This may relate to a fear of being judged or not being able to escape the consequences of your actions.
3. Financial Concerns: The large sum of money you receive might represent your aspirations for success, security, or the rewards of taking risks. However, your anxiety about losing it could indicate worries about financial stability or the pressure to maintain your achievements.
4. Companionship and Trust: The female accomplice in your dream could symbolize a part of yourself or someone in your life that you trust to help you navigate challenging situations. This relationship might be significant in how you approach challenges and seek support.
5. Escaping Reality: The act of fleeing in a cab might reflect a desire to escape from responsibilities or difficult situations in your life. It can also signify a need for freedom or a break from pressures you are currently facing.

Overall, this dream seems to encapsulate themes of conflict, fear, and the desire for control over your circumstances. Reflecting on your current life situation, relationships, and feelings about choices you are making may provide additional insights into what this dream means for you. Consider journaling about these themes to explore them further.